I think the interpretation of the song material should sound authentic, independent of the gear used.Fine, you are absolutely right. A pro player will sound exactly the same playing an EB-0 with a single mudbucker and flats as he would playing a Sting Ray with SS rounds. Gear doesn't mean a damn thing, its all in the fingers
The violines used at Bach era was not Stradivari but Bach composed some very impressing compositions for the violine.