Pretty vanilla nickname, that the baseball organization goofed and took the name from the city's roller derby team.
https://www.espn.com/mlb/story/_/id/32643793/cleveland-guardians-settle-lawsuit-local-roller-derby-team-rights-name
I don't have a problem with generic names such as "Warriors....Indians.....Braves....etc." Again, organizations are not naming their teams to embarrass or humiliate anyone, let alone their own organizations. Some questioned the Chief Wahoo logo and I can understand the questioning. So come up with a different logo.
That being said...teams have been changing and getting away from names such as "Indians" for a long time. I believe Stanford did so in the 1970's, Dartmouth, SE Missouri State, etc.