Most likely because the issue involves a video game based on combat that is used as a form of entertainment, and the behavior in question has no meaningful in-game or out-of-game consequences other than being removed from the PG.
I don't see difference between cheating in a video game or any other type of game, provided its played against other people.
Elite, however, does not. Otherwise please explain to me why the major PVP groups systematically cheated with the Engineering exploit for a year and had no consequences other than the removal of the exploited modules? FD has set the bar for cheating and the penalties are very, very low. So low, in fact, that I fully expect those same PVP groups to not hesitate to use a new method of cheating if it becomes available in the future because the only consequences are the removal of whatever method was being used with no other in-game penalties.
Its OK for FDEV to be rubbish at dealing with cheating as they've given us mode choice and block. "They didn't stop me" just doesn't work as personally I'd opt out of playing a game with anyone who believed not being stopped was sufficient reason to cheat. I have the tools to do so as well.
Video games are a form of online entertainment with no actual risk or consequences relating to them. That doesn't mean the behavior is "good", it clearly isn't, but FD has set the penalties for cheating in the game and they are basically non-existent. If FD doesn't want to "punish" players who blatantly cheat with exploits and destroy other players in Open, what makes you think they are going to enforce arbitrary rules in a PG?
Being a video game doesn't really change it for me. I never knowingly play games with cheats as a personal preference, conning your way into a PVE PG to go on a rampage is definitely cheating as you are avoiding people who can fight back/concentrating on the weak.
One of my hobbies is archery, people sometimes try to cheat at that by rule lawyering the score or trying to get one of your shots ruled disqualified. There's no risk or consequence there either beyond being rejected for further tournaments because people refuse to play with you. They don't get punished, they just wind up lonely.