People put to much faith in blizzard ability to make things better. Really, you don't question it, and then when you realize all your faith in these devs isn't quite what you claim it to be, you still defend them?
Some of us have been though that, have defended them, have thought maybe they can do better. And its because the devs have made so many half arsed promises and not given what they said will happen in the past, MANY TIMES, that the rest of us are clearly skeptical about anything they say.
Saying 'oh its alpha, it'll get better', No, I've heard that line utter so many bloody times, and it never works out to be better.