It can get all the good reviews in the world. I still see nothing original or fun about this.
Interesting. What's not original about a post-apocalyptic world with mechanical wildlife? I can't think of another game that's done this. It definitely borrows an awful lot from other games in many ways but the base concept is pretty new in many ways.
But boy oh boy does it feel like a dumb concept.
Bar making an RPG out of a parasite living in someone's body I'm not sure what a developer could do at this point without some sort of title crossover.
The actual plot - like you said - is without doubt original, and that's surely the crux of the originality argument. That it borrows from previous titles (which why wouldn't they when they've got ex Skyrim & Witcher Devs on board) is surely secondary to the core idea.
As far as I'm concerned originality isn't equal to fun