I still find it hard to understand why people believe that commentators can behave like ordinary fans. There's such a thing as 'professionalism'. Google it.
I think standards of journalism and commentating are being conflated here. I would expect a sports journalist--who is from a profession with standards about sources, objectivity, etc.--to behave differently from a commentator. As I've mentioned before there are things that commentators can per se say that are wrong or offensive (statements which are racist, sexist, etc). This was not one of these things.
Kurt and David were hired because they were former skaters and they both have expertise about what's going on on the ice and views about the sport. Nothing that they said is unprofessional or out of bounds for commentary: they are allowed to opine about backloading. Some may not like the way David said it and everyone is allowed to disagree. But lets be careful about saying or implying that they said something unprofessional, illegal, or unethical.