On the one hand, I agree completely! I mean, how I wouldn't love to just run to Xeru, coh my kill team in, kill him, and port away.
Yet, EQ was always about learning to do each zone as it came at you, and this is retained, in the balance of CoH-abled zones versus those that aren't.
Even with using boxing software I still hit the non-coh zones like I did on live: I go clear a section by pulling the mobs back, and then I carefully, and casually, move forward to the next pull spot. It's good to stay effective at the things that make grouping successful, while also having the ability to make it easier in some zones.
I always do Sol Ro and DSK 2 by pulling, and they are fun zones for that! Especially when I forget that some mobs summon...

A good death or two, now and then, makes it fun!
So, while the mechanical, "run in, coh, kill, port out" task master in me agrees with you whole-heartedly, the original EQ player in me, the one that fell in love with the game, loves it just the way it is. That balance is hard to maintain, but so necessary to keep it challenging, and fun.
If it were up to a vote, I'd vote to keep that balance.