I imagine the commenter was calling out what they perceived to be an inauthentic yet carefully planned facade of diversity. This marketing trend rubs me the wrong way as well, because it reminds me of how I was raised and educated as a 90s kid to believe that racism was a thing of the past. That turned out to be a damaging lie.
I don't mean to imply that companies should avoid displays of diversity, I just mean that it's obvious when it's inauthentic. Virtue signaling in exchange for business is not progress.