Paul, didn’t you just write a PbtA Westworld hack? Physician, heal thyself.
I’m with Topher Gerkey that everything is a remix, and RPGs, in particular, are about celebrating their source material — the first printing of D&D had “hobbits” in it, etc.
And I’ll even deflect the hate away from you and invoke the old “Brain Damage” thread from the Forge, which I think is relevant here. I.e., it’s fine to invoke your sources material as long as know why you’re invoking your source material.
(For me, stuff like Far East or — and maybe this is just me — anything where characters dress like Musketeers in settings that are not 17th century France is a flag that the why is missing.)