iOS9 is awesome , but who think iOS is getting more n more complicated then 4...
When the iPhone came out everything was new to a lot of people. People who weren't already smartphone users migrated. iOS was an operating system that basically had training wheels for those users. By the time iOS 7 came, Apple took the training wheels off because they had already formed a generation of users who knew how to work with the OS unconsciously.
Apple trusts that users will get the hang of different gestures, features, and things of that nature.
As far as the Ned Flanders' of this thread go, nobody is really invalidating the OP's opinion. It's just a lot of not so understandable drivel that comes thread after thread that we are criticizing.
That made me LOL. Back on crackberry I used Ned Flanders as my avatar as I found I got bashed less for owning the persona.
I have suggested this before, just let the threads die instead of debating them.
As far as this topic: I know from my work that many users only use very basic functions and easily get frustrated by many aspects of the phone. There are many reasons for this. Naming, non obvious gestures, more then one way to do the same thing and many more.
I have personally mapped out settings and what functions they perform. It is a massive list. They are not always clearly organized and named. Apple knows there are confused users. That's why they have perpetual scheduled help sessions at the stores.