You seem to be coming from a place of knowing about comicsgate and have particular cares about it. Handman clearly doesn’t even know what it’s about so it’s not fair to say he is expressing callousness to you particular concerns. You could say, hey the name sounds dopey but it’s actually something important because X reasons. Maybe he’ll agree with you or maybe he’ll have more contrarian views about it. You seem to be way overreading Handman’s post.
I don’t have a clue what comicsgate is, same as him. My point is that it’s uncool to just assume it’s stupid and inconsequential without knowing anything about it, and how it might affect some people that aren’t you.