There was also IIRC a sizeable thread on reddit at 4.0 about it; things quietened down when the ridiculous Cure-dependent lily proc was removed and DB improved, but the original sentiments haven't really changed.
You could conveniently make the same assumption here, though. The happy (non-WHM main) minority are here saying WHM feels fine, the unhappy majority are not a part of the forum. It evidently caused enough of a problem that the dev team modified the worst aspects of the job, but the lesser complaints remain. And while these complaints remain, the other classes receive more attention.
If you don't think 10% or less of a difference matters to players in terms of clears and speed... boy, we've really been playing a different game.snip
And I'm on that path already, make no mistake, but "play something else" is hardly a solution to class imbalance, nor should it be.