So called "sports reporters" act a lot more like influencers these days than they do actual reporters. They are all more heavily invested in coming across as experts and telling people what they should think. They all get really testy when teams, coaches and players don't do what they've spent a lot of time preaching that they should do.
I think it's because it undermines their credibility and if they lose that, then they lose their job. That's a lot of stress to be under, so I get why they get so upset and lash out at people who don't do what they've been telling everyone that those people should do.