SE's stance on this is very disappointing. They talk about considering difficulty and planning strategy around the poor design as justification.

But is this the KIND of difficulty we want? This is what other game developers would call fighting the interface rather than the creature. That's not a fun kind of difficulty, IMO. Say what you will about the overall design of other MMO's, but a few of them have undeniably beautiful responsiveness and a great feeling of control because they understand this concept.

And is the strategy required to bypass this kind of poor design the kind of strategy we find fun? Personally I find standing there doing nothing during the times you expect a stun to be required is pretty boring.