I'm not so sure...there's no doubt that the Prem don't want the likes of Leicester winning the league again, so it will probably be the likes of the Foxes, WBA, Stoke, Burnley, Watford etc who see the reds, thereby ensuring, ManU and Chelsea get their CL places back.
I am a simple soul, but hasn't threatening the referee (either verbally or by action) etc always been a red card offence anyway.
So didn't need new rules, just them to be applied?