It's very much invited, though, when the GM also calls out their play, suggesting they cheat offensively and that he doesn't like how they're playing. It's on the staff to reign that in. It's on the core, of course, but there are also decisions the staff could make to hold players accountable that they're seemingly avoiding. The oldest team in the league shouldn't need it but it would be beneficial to at least play the players that are going more rather than just act like this is all rather normal and acceptable.