To me, this is one of the threads where people commune who just need to fault and complain because they have this drive to fault and complain. I don't know. Maybe it's what makes you feel different, or special, or discerning or whatever. Pointing out how your sophisticated and non-streamlined expectations aren't being met. In all of this, you seem to have completely lost the ability to simply enjoy a game for what it is.
I mean, I do get the point, I had fun exploiting unexpected glitches here and there too. But it's like Servasus already said: they're glitches. Constructing an argumentation about game design, the "soul" of the game, the developers' mindset and conceptions of "fun" around something like that is really dragged in by the head and shoulders. It's just you guys being sophisticated and old-school. No offense boys. Perhaps think about it for a moment.
Blizzard just can't do any right. Now they're guilty of being too good in preventing and fixing bugs. Oh well.