Yeah I can understand the thing where OP makes it out that these are new problems. They aren't. I'm just mad because they are old issues, I'm not 100% agreeing with OP saying "OH IOS 8 SUCKS IOS 7 WAS WAY BETTER" blah blah blah. That isn't the case. Many of these issues existed on iOS 7 and have carried over to iOS 8, either being the same or worse.
A lot of them ended up being worse under 8. I don't know why but they are. To make it worse, I noticed a lot of these issues for the short time I had Beta 3 or 4 of 8 install on my iPad mini 2 and they carried over to the Public Release.
Considering Apple publicly released Siri as a "Beta" iOS 8 should have been called a "Beta" in Sept. It wasn't ready for prime time. IMO it still isn't. They focused on features instead of bug fixes. And the OP doesn't even seem to be comparing 8 to 7; he's comparing 8 to 6!
Apple definitely needs to hire some new engineers, there's no way that they can continue like this. They definitely have the money to back new employees, but for whatever reason they are just being very hesitant.
I'm hoping and praying iOS 9 is a bug fixer as well. I have a terrible feeling that for some reason iPad owners may remain neglected. Hopefully it won't be the case though. They need to sort out this translucency and somehow make it more efficient because blurring a keyboard is a nightmare on iPad for some reason, I don't see why, but it just is. Issues are multiplied by two with a split keyboard - WHY? A split keyboard is blurring less than the full keyboard yet it's twice as laggy! So annoying.
I hope they bring on more engineers for 9. iOS needs
a lot of help right now. Probably also the reason they are going to do a Public Beta. They can't keep the OS in a walled garden for devs only and expect 80%+ of the bugs to be reported and squashed. Do most devs even have time to complain to Apple about a UI bug? Not really; they are too busy updating their own app for the new OS since Apple is adamant about releasing a major update to iOS every year.
I think the feeling of iPad owners being left behind is because in the past they have been. I hope Apple doesn't do that again. Remember the early versions of iOS 8 Beta were iPhone only. I don't think it was until Beta 3 or 4 that they actually released an iPad version. That should have tipped us off iOS 8 was never going to be ready in time.
Oh and I take back what I said about iOS 8 being like Windows Vista. It makes Vista look worse. Really iOS 8 is like Windows Longhorn pre-restart. Buggy, resource hog, space hog, bloated code added everywhere (on top of a already bloated base), etc, etc. iOS 8 reminds me a
lot of Longhorn now that I think about it. Apple needs an Intel-like Tick-Tock cycle. Tick OSes (iOS 8) introduce new features; Tock fixes any and all bugs in the Tick OS (iOS 9) or space out OS releases. Instead of major numeral change every year where people expect groundbreaking new features, how about an incremental increase? This way, the larger upgrades (iOS 8, 9, 10) get an additional year in the lab and .5 releases (iOS 7.5, 8.5, 9.5) introduce support for new devices and fix bugs. Maybe with this cycle there won't be many bugs to fix period.
For those that may say that iOS 8 is fine and has no bugs and was ready for prime time, I would like to point your attention to 8.0.1. A fix for Health-app problems lead to 6 and 6 Plus users owning iPhones-minus-the-phone and non-fuctioning Touch ID. Unacceptable that they (a multi billion dollar company) even let this one out of the lab.