I completely disagree with the criticism of general public criticising.
People are allowed opinions. Most of us know a bit about sports. Most of us know a bit about biology, PE, the psychology of sport, both individual and team events. We also may have played it ourselves, be a coach or a referee. I can comment knowingly (well, a little bit!) on football, hockey, gymnastics. I've played tennis. I enjoy watching a lot of sports.
Other sports you don't need to be an expert to enjoy. Or comment.
I know a good shot in tennis, I can track it back to the many shots before that made one player gain advantage. You don't need to be an expert to know eg Radacanu wasn't in tip top health when she lost yesterday.
True I'm not a swimmer, but I've read enough about professional sports to know the sacrifices they make, yes I may not know the stroke reason why someone lost, but I can still enjoy watching the old clips of Phelps, or watch Peaty etc.
And yes, I'm allowed to watch football and be complementary of amazing one-off's of skill, good goals, and also the criticism of the other side of how the lead-up play and the errors of the other team partly allowed that goal. Surely that's part of the analysis?