I'll tell you, I was in there for a couple hours last night 7-9pm EST and in the general system flying around for another 2 hours, and I only saw 2 Commanders the entire time. I killed one in the combat zone and the other I just saw at Godel Dock.I had wondered off after the event didn't seem to be getting any activity but now that it appears to be getting attention I will stop back by to keep my rewards up while I search for a decent RES in Empire space.
Seems like there is no one there, unless they're on at other times during the day. I found it strange considering all the activity in Lugh during the event there. It could be that Quivira is literally on the outskirts of Federation space and a lot of pilots don't want to make the 100LY journey from the core systems.