This has people upset? Group dynamics are up to the individual group and what works for them. Further, criticism should start from within to begin with--"Oh, I totally screwed up X," or "Okay, we cleared Y, but what can I do better next time?". Also totally fine to celebrate success, but far too many people would rather find a scapegoat rather than owning up to their own inadequacies. I'll give Xeno this--he seems as able to take feedback as he is to give it.