If they try to there will be a whole bunch of casualties I don't really see the point since he is on the human's side right now and to anger him would mean suicide pretty much.
Wonder how many Dalki are still out there over all? Eno did give a little advance warning of the coming battle, how many more would have died without that warning?
I'm sorry Quinn but Vincent's right - you can't save everyone.
One of the first things they teach you in command school - Rule #1 is that in war young men and women die.
Rule #2: not even Quinn Talen can change Rule #1.