User blog comment:B214/Volume 21 info & spoilers/@comment-3965848-20160726065224/@comment-9595671-20160919034403

I think it was both actually, remember that Trihexa doesn't seem to be intelligent, it acts more like a force of nature. So it wouldn't discriminate, it would just destroy, organic, inorganic, human or supernatural.

Plus what was said about the repairs with the environment I believe is likely the supernatural world's way as a whole to show Humanity that they means them no harm. Right now, they need Humans to trust them, and that's the best way I think they can at the moment.