This seems like a cool product, but it totally misses the thing that makes owning different guitars interesting. When I pick up my Strat or Tele, I'm not thinking about playing balls to the wall metal on it. When I pick up my 8-string headless, I'm not thinking about playing blues on it. Not that you can't, but different guitars inspire in a different way.
So even if it was 1:1 able to mimic the sound of every pickup in the world...I don't know if I'd want it. I could see use in it for dialing in your perfect pickup sound, but less so as a "replace all your guitars" product.