The difference is in the captalisation. I think he's using "a holocaust" to mean a disaster. It's exaggerated but hyperbole isn't illegal. I'm pretty sure he wasn't referring to "The Holocaust" and suggesting it was actually going to be on a par with genocide.Why would you use Holocaust though to describe a game a football? It's nothing to do with cancel culture.
Political correctness shouldn't be an excuse for cordoning off whole sections of the English language.