yes ok, the writer is a fetishist
Does htis come up in the mainstream material?

no.
the closest beeing the gender switching elves, which is more virtue signal than "untame".
Forgotten Realms realy isn tan awfully interresting setting.
What it is is a settig with a lot of numbers attached to it, you got encyclopedic detail about most things near the sword coast.
its still a kitchen sink fantasy.
Dark Sun and Eberron are far more interresting settings if you ask me.