I'm not sure one of the best developers in the Apple ecosystem needs a lecture from you, especially when your talking points are all taken from their own blog post anyway. Nevertheless, here we are and you aren't the only one heaping blame and lols on them.
I never thought I'd quote Forrest Gump, but "Stupid is as stupid does, sir." Any developer that cannot price its own markets accordingly and then complains it didn't generate millions of sales when it didn't spend any time on the software (gauging by its "severe limitations") deserves what it gets. A true "PRO" App would be priced higher, but have more features as well. But then they've ignored a MUCH LARGER market. In other words, why didn't they port this to OS X (macOS)? Most Macs support at least two monitors and this would be a great App for a second screen and they could sell it independent of the App Store. It's easy to port to Mac from iOS. But no, apparently it's too much effort to "support" the App on iOS to even continue existing sales. In other words, it's already done so why stop selling it? Customers are irate because updates are too infrequent, but they won't be irate about discontinuing it period??? Sorry, but that makes no sense. I suspect the software will suddenly appear on the Microsoft Surface platform in the near future or something to that effect (perhaps they sold it to a 3rd party for a large lump sum and simply don't want to tell customers right now as they would be enraged?).
I suspect the truth here is that there is no 'sweet spot' in the App Store for semi professional software. It clearly needed to be more expensive because of its niche appeal, but the store reviewers have their own thoughts on the $10 price...
"severely limited given the £6.99 price"
"early adopter tax in full force"
"frankly is a joke and feels like a rip-off"
"seems like a gouge to be honest"
And these are just from the first page. Any higher and the Legion of Cheapskates would have gone into meltdown.
I have found it strange that Apple users are so damn cheap when it comes to buying software when they happily give Apple SO MUCH MONEY for overpriced hardware. I guess they spent all their money on the hardware and have none left for software. But this is pretty much true of all smart phones. It also seems like there's this stigma against intellectual property in general. It's not tangible in the same way a phone sitting in your hand is so it's not worth anything (i.e. people will spend as it says here $3000 for a piece of hardware and then don't want to spend a dime on software for it).
The problem is Apple and it's inability or refusal to cultivate a proper professional marketplace for iOS. On macOS you can buy from the MAS or the open market, and the difference between the two is vast. On iOS we only have the official store and we can only image what an open market would provide for users with deeper pockets and specialist needs.
The problem is Apple has not only "not cultivated" a PRO market, they've actively DESTROYED their existing Pro markets on the Mac!!! They had a large Pro market for Final Cut Pro, Logic and other uses and stopped supporting the Mac Pro and then ultimately replaced it with a trash can with no internal expansion and yet despite their claims of their "flagship" being the future, they haven't updated THAT "Pro" model in over 3 years now!!! (and haven't lowered the price either, making it a fracking JOKE). They took Final Cut Pro and rewrote it and released it before it was ready and destroyed that market as well (or transformed it into a sub-pro market, which is what they seem to think is their real market; wannabes galore). They ditched Aperture altogether and tell people that piece of GARBAGE software called 'Photos" is good enough. They pushed all the Mac software into DOWNGRADES for the sake of the iOS iPad market parity and the problem is that no one really gives a flying crap about iPads anymore (gimmick that just didn't pan out; it's not comfortable/ergonomic to use an iPad all day long for starters and hence the reason tablets will NEVER "replace" desktops.
This is where Microsoft "gets it" and makes tablets that can turn into desktops for longer and more ergonomic use. Apple refuses to admit a hybrid is a good idea and they will pay for it in the long run as history repeats itself and Apple becomes less and less relevant over time. They're already dropping down down down to less than 20% of the market. What happens when they hit less than 10%? 5%? Apple should look their own company history from the 1990s and think long and hard about the long term future of the word "propriety"). How can Apple seriously expect the iPad Pro to sell to a true "Pro" market when they refuse to support such markets and actively destroy existing ones? Their sheer GREED, arrogance and controlling nature in regards to the "App Store" (where they can just can your product at any time for any reason) was the first nail in their coffin. You can't just tell people what they can and cannot do on your platform while other platforms are more open and expect everything to just keep falling your way in the long run. If it weren't for Steam, I wouldn't even be buying any games for the Mac anymore (Mac App Store is a joke).
