I don't think celebrating diversity genuinely is tokenism personally. If you have a respectable character being cool who is some underrepresented minority, it can be inspiring.

If you are doing things like rainbow military recruitment or you are Fox hosting specifically transphobic trans women or extreme rightwing black people to try to pretend you don't have a problem with racism or transphobia or a company just trying to meet some quotas to avoid being sued, then it would be tokenism imo.

Anyways, I do personally think representation is important. Moreso in real life, but media is a place people look to for similar inspiration. Sometimes little things can mean a lot for some people.