Undisputed_blue
Player Valuation: £8m
As far as I'm aware, the retrospective diving ban has been abolished due to the introduction of VAR, which is supposed to give mandatory yellow cards to players if they think try to deceive the match official.
Had Son been booked for that dive as you say though, he may have thought twice about taking Gomes out...
I don't believe it has been abolished as it was recently reported that Harvey Elliott had escaped a retrospective diving ban by the FA.