Android O has only just added notification badges for example, a basic (and necessary) part of many people's OS experience. iOS doesn't have split-screen for their phones, a basic (and necessary) part of many people's OS experience.
Uh huh...and Samsung has had them forever. Android base OS is adding things that other skins on Android has had a long time. Android is still light years ahead when it comes to customizing your phone with widgets, putting your icons wherever you want them, etc. iOS copied widgets for a widget screen and their notifications still are not on par at all.
Different strokes indeed, but I believe Android is way ahead of iOS when it comes to features and customization and iOS has copied many things from it to try and keep up.
Each have their own thing, but I don't think Android is playing the "catch up" game at all. Not even close. That was the point of my post.