Currently in the West it is most common to say "black person" if you don't know the persons name, but not if you do know that persons name or if you are in a professional capacity know the professional capacity. So not knowing someone's name is not an excuse. if you work at a company would you call your CEO "the black guy"? One can just say [team-name] coach.

I mean, this guy will be labled a racist for the rest of his life for something so innocuous, and the label "RACIST" is one of the most serious and damning claims you can make against someone in 2020, its very serious.

No he won't, it has been clarified, people like above have lent support, everyone will forget about it because it wasn't a big deal. In 2020 people are racist and ignorant all the time, nothing has changed, we just have social media to see the outrage.