Provocative, yes, interesting, maybe not really? It reads as another plug in for the "DSLR is dead" band wagon...
I am sure that Sony will sell a few more A7RII's because of the functional adaptors, but so what? For most people, it is still a very expensive camera. So what do we end up with?
1. If I do not have a camera or any lens, and want to buy a FF one, and choose a Sony A7 - will I buy a 3rd party lens plus adaptor? Probably not.
2. If I have a Canon or Nikon FF camera, plus a bunch of native lenses, and I am eyeing a Sony A7 with interest, would I sell my previous camera and get a Sony? Probably some would do, I know I did:) I replaced my Canon cameras and lenses for a Sony A7 equivalent system. So yes, some potential growth for Sony here.
But I would not really go the way of the electronic adaptor, one more piece of tech that might go wrong...