Seems that there was, at most, a (somewhat snarky) suggestion that the diversity of the conference could be improved. You can agree with that or not. The fact

Seems that there was, at most, a (somewhat snarky) suggestion that the diversity of the conference could be improved. You can agree with that or not. The fact that someone voicing concerns caused the whole thing to be called off indicates this is still an issue people are mostly not equipped to discuss.