I mean these guys are constantly doing some world class innovations in the 3D printing realm and also why would someone put so much effort to discredit such a beautiful idea? 
I know next to nothing about both vinyl records and 3D printing, BUT I would assume it is legit??
I know next to nothing about them either, but I would assume the precision of 3D printers is not good enough to create anything that sounds good.
But it would sound better than the recent Jimmy Cauty / Local Psycho record pressed on a piece of slate, designed to destroy your turntable if played.