If Blizzard really loses players because they can't do anything other than aoe, then only the baddies that shoudn't even be playing anything harder than tetris will leave. Less retards in my raids.
Part of me agrees...and the other part doesn't. I enjoyed that TBC heroics were complex and required thought/planning. But at the same time, I always found it stupid that trash in TBC heroics was complex and required perfect execution, while the boss fights were no more than tank-n-spanks. Didn't make sense to me.
Maybe it's Wrath tainting my judgment, but trash is trash - it's meant to be burned down quickly and w/o much thought.