You asked for it and you got it. Now you can expect a whole lot of:
Taking out the speed runs did nothing but create more asshats. I'm not even ashamed to say I will be one of them. AK clearing trash will take 1+ hr ... considering I only have maybe 3-4 hours tops on any given day why would I risk an hour of it failing because the DPS can't get down Demon Wall? Granted I don't pug much at all for this same reason but even doing speed runs I put together my own groups for it as to not hinder or hurt new people pugging the dungeon.
So many are happy over this now change but in a week or two after these groups there will be so much QQ on these forums. "Gear takes too long to get" "people who leave need to be more harshly punished" "I can't complete a run because no tank will stay in group!" etc etc ....