The ethics section is a tacked on thing which is required by some large ML conferences. They're essentially a PR stunt. No ML researcher i know cares about it, or devotes more than the 5 minutes it takes to write some platitudes to the task. There are simply no incentives to write this properly. And quite frankly, i don't think there should be. We are educated, paid and motivated to push the boundaries of research, not to think about all potential fallout (which, let's face it, would usually require a whole additional paper for most meaningful contributions). I don't really see how we could change this.

Tldr: as a general rule you can ignore the ethics section of ML papers.