It's probably more like the Bernardo Silva incident where he used some kind of black emoji in relation to teammate Mendy, rather than the Suarez saga. I felt Bernardo got a little hard done by at that time, since I think context should always matter, and when someone's joking with a good friend in a relatively innocent way I think it's worth a warning and maybe some extra education or being forced to apologise at best in terms of punishment. Actually giving them a ban from playing seems so harsh if there's no malicious intent.
Interestingly enough I was watching some documentaries on Maradona this week and I heard he was being refered to as 'negrito' as well at times. It seemed like it's a word also used in South America for people with black hair? For example:
https://qz.com/1938957/naples-mourns-maradona/
"It worked for him—
El Negrito (the little dark kid) from the slums of Villa Fiorito who, on that field, became
El Pibe de Oro (the golden kid)"