It is true... All of GoJets Delta flying is up for bid... I agree its a real kick in the seat for the Comair people over there. It remains to be seen if Pinnacle will get them, but chances are they will.
It's starting to look like this has been part of a plan set forth by Delta if certain things worked out...
Personally I don't think this has anything to do with GoJets performance, I don't think Delta ever had any plans of keeping GoJet as a long term partner.