You gloss over the question of intent, but it's critical. Cheating is intentionally doing something against the rules of the game to gain an advantage or perceived advantage. Holding, jumping across the line early, pass interference, those aren't cheating - although in some cases, like when Seattle dares the officials to call them for contact, you might be able to make a case. But you're lumping together ordinary in-game infractions with extraordinary, largely out-of-game violations, and it's not clear why.