If this process was truly above board, they would release the recordings of the Rashford offside incident. Things might be a little more transparent now that they are releasing selected VAR commentaries, but that is no guarantee that up to that point, the system wasn't bent.
Football law makers could learn a lot from rugby, but they don't really want to. Football already has ways of dealing with dissent, diving, feigning injury, foul play. If these things occur, show a yellow card and issue a caution. If the same player commits another offence, show a second yellow card and send him off. That would put a stop to these things.
Instead of this, football law makers accept that dissent and foul play are part of the game, and worthy of interim punishments. Just make your referees apply the laws correctly, and the problems will soon disappear.
When rugby started moving free kicks 10 yards forward when a player so much as spoke to a referee, the problem stopped immediately. You never see this having to be applied anymore. Football referees are their own worst enemies.