I think the intent is the important thing. We live in a colorful world, and English is obviously an eurocentric language. I briefly looked it up and found this:
https://icehockeycentral.com/unveiling-the-mystery-what-does-black-aces-mean-in-hockey/#:~:text=Black Aces are players who are called up,injury occurs%2C providing depth to the team’s roster.
The term “Black Aces” is believed to have originated with the Edmonton Oilers during their Stanley Cup run in 1986, and has since been adopted by other NHL teams.