What are there, 1B Android users? I'm sure Google would like that to be 7B. I'd wager the complaints of the sort of people who frequent lobste.rs or HN are not representative of the majority of current users and almost certainly not of the next 6B potential users. Overall, it's everything Google said they would do with material [1]. It's fine to dislike these things, I don't necessarily like them myself, but claiming…
I don't use my tablet all that much, but I don't find myself questioning how something is done (that stuff didn't really change), or why things look different (I don't really care). It's just... different, nothing else.