The thing is that each class belongs to someone else , and while there is some line between all of them to make things balanced , some classes simply got a shorter end .
Just look at alpha, some classes got constant blue posts and tweaks or reworks because dev comunicated with playerbase .
Then there is druid , bear especialy, which got his first blue post like 3 days ago, and it realy didnt change anything, maybe even made things worse .
Then there is also that thinfoil hat reason, that blizz does it on purpose to force people to reroll, to avoid content draught and to promote selling of boost , both lvl ones and carries .