How do you know that? You could also say that the injury upset the Colts and they were on edge the rest of the practice.
My guess is that it affected BOTH teams. You saw how both teams went up to him while he was down. It changed the whole complexion of the practice. I don't think you could blame either team. What should have been done, imo, is that both coaches should have gathered everyone around and stressed how one person already got injured (non-contact), and while everyone is upset it serves notice that everyone should be cool.