Yes MBS imo isn't right for F1 especially and the FIA as a whole. I too would not be unduely upset if he doesn't get re-elected, first making changes so that in effect he can't be investigated and now this.
Yes i suppose that F1 drivers might have a bit of a "potty mouth" but i suspect adrenaline is very high at times and i challenge anyone to mind what they say at those times.
If his objection to language is "for the sport's image" surely there could be found some sort of mechanism whereby car radio messages are censored (i disagreee with this bleeping out swears on a personal level but meh) if ONLY they could delay transmission of radio so that it could be cleaned........ other motorsports such as rally i assume don't have as much swearing?, i've never watch so can't say, but if true probably because they're concentrating more on what the co-pilot is telling them whats coming up.