I would expect most of the papers who have to fill in some impact statement to fill it in with the most anodyne thing possible and get on with their jobs.
I'm all for thinking about ethics, and particularly the 'adversarial attacks on poorly understood NNs' you mentioned resonates with me. That doesn't mean I can't also distrust people who want to claim 'ethics' for their political views.
Please be accurate about academic freedom :)
Can we think about how funny it would be if someone was doing social justice rhetoric with that level of energy?
"well, uhh, you see this is, uhh, problematic i guess, they weren't being an ally. cough. you see, there are a lot of, uh, intersectional and marginalized angles here, it's really complicated. lots of microaggressions. anyways, do the odd questions on page 38, see you wednesday."
I just read around 20 of the broader impact statements from NeurIPS 2020 papers (at random) and exactly 0 covered such topics. Most covered purely technical issues or concerns. One talked about datasets not representing all world populations. Another talked about the model being used to power weapons. One talked about advertising. One talked about essentially subliminal messaging. Two mentioned adversarial attacks leading to potential life threatening injuries (industrial equipment, traffic systems, etc.).
Look, if you're going to have an objection to something then at least look into it rather than blindly forcing your own preconceived views onto it irrespective of reality.