Perhaps after decades of being told "trust us, these random concoctions we whipped up in the lab are perfectly safe, we spent 30s thinking of how this might ins

Perhaps after decades of being told "trust us, these random concoctions we whipped up in the lab are perfectly safe, we spent 30s thinking of how this might instantly kill you and didn't come up with anything, therefore they are harmless" only to find out later that they cause major problems, people are finally starting to do the sane thing and not trust the shockingly stupid position of "prove harm or we'll permeate the world with it, actual consequences be damned". It's less some new finding about the specific compounds and more a shift in default position.