People will always bitch and moan, no matter what Blizzard does.
No t6 updates? People would moan about that.
The new tier doesnt look as good as they had hoped. People will bitch about that.
I for one like the t6 updates, and if you look at the mythic warrior set it is just what they said it would be during blizzcon. Thats why I think that all the other mythic sets are not 100% finished.