He is black, and there is a double-standard -- but don't dare call that racist. It's all absurd, but it's actually good to see examples of "you become the thing you hate". Hate is a horrible, corrosive emotion. We see it a _lot_ these days -- people who become emotionally entangled and lost in their activism against racism (the mob encourages this mindset, as in that state, critical thinking is turned off). They then become hateful and racist themselves.
These incidents can hopefully (but doubtfully) cause some reflection about "why the hell do we even have 'diversity officers' in a software company? Maybe we're getting results opposite of what we sought. After all, we created the role with the silly title just to virtue-signal, in the first place."