A few reviews are even mentioning the screen of the iPad mini being it's biggest negative spec.
No one is complaining about the
display. The iPad mini's biggest negative is the
resolution, absolutely. But that's just one aspect of it, and I think what people are responding negatively to is your exaggeration of the claims. You're changing the reviewers' conclusions by highlighting the critical elements as if they are the only observations in the reviews.
"Less than optimal" isn't the same thing as bad. The flash storage performance of the Nexus 7 is markedly worse than iOS hardware. It's not as good. But it's not
bad.
For example, the reviews you posted that are allegedly critical of the display actually are rather positive about it:
TechCrunch: "That’s not to say the iPad mini screen is bad — it’s not by any stretch of the word. It’s just not retina-level ... However, the overall display quality (brightness, contrast, color levels) of the iPad mini seems better than the Nexus 7."
The Verge: "But how does it look? Well for starters, it's a really good looking display in general terms. Apple is using the same treatment here as it does on the iPhone 5 and iPad, and it makes for a crystal-clear screen that seems to hover just a tiny bit beneath glass. Colors are vibrant and blacks are deep, and games, photos, and video look terrific."
Mossberg: " I found it easy to see and read material on the screen and to tap and swipe. ... In my tests, video looked just fine, but not as good as on the regular iPad."
CNet: "But oh, that screen. It's not bad, not at all, but it's not Retina Display."
They're critical of the resolution, and that's a fair point to discuss in the review. But none of them says it's a bad display, because it's an excellent one. It's just not a high-resolution display.
I agree with you saying that it's common sense to assume the next version will be better, but c'mon, you honestly don't think they purposely hold back features and hardware?
Not a chance. They wait until the performance and price fits what they're looking for, but Apple hasn't purposefully passed on any hardware that fits their needs and price points just because they want to stretch things out. That's a ludicrous idea floated by conspiracy theorists who don't understand how things actually work in the technology industry.
2011: iPad2 appears. Despite being smaller and lighter, it has (crappy) front and back cameras!
Cameras don't weigh much and there was plenty of room in the first iPad. It was more likely that, like the majority of the population, the thought of taking photos or videos with a tablet seemed ridiculous to engineers at the time, and they spent the money elsewhere until they realized that customers would rather have it and not use it very much than not have it at all. Then it gets shoehorned in when they shave a few dollars off their costs in other areas.
There's nothing magical about what happens after that. Just like with phones, cameras improve every year and hit the same price points. When you leverage mature production lines and volume efficiencies, it becomes fairly easy to continue incremental improvements. Tablets aren't on the bleeding edge of technology for cameras--they let the phones take the cost hit and tend to trail somewhat.
Lenses got bigger and shallower and cameras got good enough noise reduction to cram more sensing elements on the CCD. Each camera has better optics, thinner profiles, and lower costs than the last. You can see the compromise on some of the thinner Android phones that were forced to have a camera bumpout while waiting to catch up.
It's not like there was a thinner camera available for the price and they thought it would be fun to have a lumpy phone. Same thing here.
That's not what I'm saying. I'm not pitching scaling up from 1024 x 768. I'm talking about scaling down from full-sized iPad retina: 2048 x 1536. Unless I'm missing something, scaling down to- say- 82% of the resolution should work as good as scaling down a 1080p movie to fit- say- a 1024X768 screen now (only my suggested scale would not be nearly so much and would maintain the exact same full-size retina aspect ratio).
It doesn't seem to me that you're talking about scaling at all. You're talking about taking a 9.7" iPad screen and literally chopping it down to the 7.9" size.
There are at least four significant problems with this:
1. It introduces a new configuration to target for apps, because you can't simply take an app that is meant either for iPad 1/2 or iPad 3/4 sizes and run it on this hypothetical display--all content would shrink and the smaller touch targets would be impossible to hit.
2. It breaks compatibility for scaling apps, because lines will no longer correspond to pixel boundaries. You can't work in fractional pixels, so if your points don't correspond to integer values, you don't have true display fidelity. Everything looks a little "off" except photos and videos, which are more amenable to scaling.
3. It lowers the performance of the tablet. Running a higher resolution means that with the same CPU and GPU, you're going to suffer.
4. It drives up costs. Other than the display itself being more expensive and the need to go with a more powerful and more expensive CPU/GPU, there are other more expensive components needed. You've got to get a much brighter backlight and somehow keep it the same size, so that's really expensive (also why the Android tablets are dimmer), and you need a bigger battery to power the hungrier GPU, CPU, display, and backlight. All of that increased power draw also throws off more heat, so you need to figure out how to keep temperatures down, and even the case costs a little bit more because you need it to be a little bit bigger. Then the whole thing weighs a little more, which means it costs more to ship. Lots of little things add up.
None of it is unsolvable, but it does come with consequences. In a year or two when component costs continue to go down and maybe if we get lucky and battery technology can be squeezed into a smaller and lighter package, then we'll see that change.