It was decided (passive voice intentional) that Negative Energy isn't akshually Evil via the usual nihilist wuss out.
I'm not so sure that's true. After all, all the objectively Evil shit is still there, and Gygax was pretty fucking based. I think it has more to do with fundamental forces necessary for creation, etc. I'm fine with Negative Energy not being Evil, too, but then Good and Evil priests should both be able to channel it, and Necromancy be Evil for some other reason.
I'm a fan of the whole "Necromancy requires suffering" of Nick Perumov's books with Fess the Necromancer, personally, along with the classic "Necromancy rips souls from beyond the veil". But that'd require some shenanigans when it comes to the cosmology and how souls worm in D&D/are recycled in Pathfinder.
Necromancy in Forgotten Realms has always been "evil" because the gods have decreed it is evil (how they know that or why they decided it is is unknown), the existence of archliches in this context doesn't really make sense unless morality is relative which we know that in the FR universe it isn't, sooooo beats me.
Also, deities are beholden to the cosmology too. In a planar sense, at least pre-4e, they can't just up and decide what is objectively Evil (although they may obviously condemn it and proceed to not give a fuck, punishing you for being "Evil" and whatnot). So like you said, I dunno, I don't buy that one.
Too bad there is no Druid themed Mythics.
Like c'mon. No Druid companion in 2 games. They need CotW to be on par vs other spellcasters in PfK. And now we don't have nature themed Mythics.
Owlcat just hate druids.
Yeah, the closest is probably Aeon, but aeons don't seem very.. druid-y. And yeah, no druid companion in Kingmaker of all things was bullshit. I'm not a fan of playing druid because of the way we're introduced, but meeting a druid in the Stolen Lands seems like a given. Something like Faldorn 2.0. But no, we don't even run into a henge, let alone a proper stone circle of celtic goatfuckers. Complete rip-off.
What I'm really missing in terms of Mythic Paths, though, is something for rogues/assassins. I get that Trickster is likely intended for rogues, but the way they present it, even the name, suggests something more like a prankster, a classic Loki, appropriate for benign thieves, bards, and fey assholes of all colors.
But what I'd want for a rogue/vivisectionist/slayer/assassin isn't a trickster, but a creeping shadow type deal. Like a black smoke that moves as a fog across the floor, or shadows that grow longer in all the corners, and the wet stab in the night.