I been saying it for quite a few years.
All the way back to Brett Favre. Which is I believe when the league realized. In any given season theres 5-6 qb's that drive the ratings.

That handful of qb's. They get every call- every time. As well- the main job of the backjudge in a favre/ mahomes game. Throw a flag for roughing if it even has a faint scent if a late or roughing call. They never get called for grounding. Always a flag if even you just stand your ground & they slide into the defender.

All the more reason to find that real deal franchise qb.