By all means - there isn't any rush. Indeed this was more for the sake of awareness than looking for a fix. If it bugs me and I decide to continue using the plugin I'll likely just consider addressing the ones I care about for myself.
I would have put up a PR for the palette normalization but don't think it has a public repo (at least didn't spot one either here or on the godot asset store).
If I find anything else will post it on the discord. Thank you