No more so than knowingly holding a guy at the line. There’s a reason the inspection happens, they’re supposed to catch this. Of course we know from interviews Aaron Rodgers has given that they don’t always catch it (he’s said he likes his over inflated, submits them that way, and gets annoyed when they let air out), notice nobody whines about him being a cheater even though he’s outright said he breaks this rule. Also keep in mind the latest leaks (so at least as unsubstantiated as the original leaks) is that 1 ball was close to 2 pounds under and the rest were just a bit under.
It’s nothing like sneaking a bomb on a plane. That’s intended to kill people. This is a game. Nobody gets killed.
What’s the penalty for sneaking an illegal football on to the field and using it during the game? See...it’s not like holding at the line. It’s cheating.
Just like what’s the penalty for capturing the other teams plays by hacking the wireless system?
Patriots are cheaters...that’s a proven fact.