Intriguing comments on Jack and flair players....
When a player gets challenged, its either a foul or it isn't. The severity of the foul/touch on the player does not come into it.
Flair players get kicked more than most usually fall down because, as you have said, they get kicked.
Usually, a player that gets kicked its more often than not a foul.
He's the most fouled player in the league for a reason, he's been fouled the most. Simple as that.
Strange, but what i've noticed is the opposing fans that do not like Grealish or think he's a cheat or a diver are the ones who's teams foul him the most.