The problem with that data is it is a statistical average, like “Kansas city statitistically gets X percent of calls in their favor, which is within a short marging of most teams”. What it doesn’t mention is where penalties happen at critical times, like Mahommes gets sacked, it would be 4th down late in the game, but they throw the roughing penalty. The ex NFL officials they hire as experts in games I have watched commented on how KC gets the borderline calls. Then there are the non calls, especially the holding calls on their offensive line, games I have watched the commentators are like “how wasn’t that called”. With Mahommes they call roughing because he looks small and fragile, meanwhile Goff got hit by come monster on the Commanders defense, where he literally was woozy and he was defenseless, but because he is bigger, didn’t get the roughing call, Josh Allen is the same way. Cam Newton was practically knocked unconscious and they wouldn’t call it…then again, Tom Brady was great at flopping, too, and refs often would give it to him. It is true success breeds contempt, New England would know about that, but there is really something there I think with KC. It doesn’t explain every game they have won, lot of it is opposing teams screwing up, but there is enough where people aren’t entirely wrong.