I dont think there is really anything untrue in what P-bon said, I just dont think he should have said it
I absolutely think he should have said it. He was standing up for his current teammates. Francona said almost the exact same thing just before the trade deadline on WEEI. While they all want their team to get better, adding players means also getting rid of players. When everyone likes each other in the clubhouse (or bullpen), then no one is going to want to get rid of someone (or push them into a different role).
Basically, I think Paps point was "I like the team we have". I want the players to have that attitude. It is the GM's and coaches jobs to dissect what changes need to happen.
It is kind of like if the Sox were to bench Varitek. The players absolutely would not be happy about it in public, because they want to show the respect to their captain. They are quite aware of how it can help the team on the field, but their biggest concern is the clubhouse, since it is their friends, rather than just a bunch of movable pieces.