Obvious? Maybe.
But, if he is such a fan of 'obvious' features being missing in an OS, I seem to recall copy and paste being missing the first year of iOS. When it came out, they announced it as a new feature. And why did it take Apple 6 years to get an 'obvious' security feature like 2 step authentication? And even when they got it out, it took several more months to get it working properly.
It took Apple 4 years to announce a Notification Center and listed it as a 'feature's of ios5. They did the same with rich notifications. And it only took them another year to add those. I would argue that all these are staple feature for any OS. (Probably why you find them in WP, iOS, OSX, windows and Android. )
And then there are simple things that Apple still doesn't have with iOS that are clearly 'obvious' oversights: let me add a video, song or ringtone from my pc to my iPhone without having to use iTunes!
All said, I do agree that 'finally' Android is getting this added. Probably why I put the word 'finally' in the thread title. Haters gonna hate though. Not much we can do about it.