The game went about 10/15 years ago I'd say. I'd almost go as far to say as its coached into them much like knowing when to be cynical and take a player out.
Its not so much the diving, its the rolling around like a pussy that gets me. Grealish isnt as theatrical as others but he can be bad at times. I forget who it was, maybe a Leeds player but I distinctly remember a centre back rolling around like they chopped off his leg. He was trying to get someone sent off, maybe it was Watkins? And Watkins just pulled him up and he still kept acting like he was hurt. He wasnt even touched. Fannies!
It's amazing to me that they're not embarrassed by the carry-on. I guess when you make so much who cares.