The other fly in the ointment is that you also must play in the company of at least one other person for a score to be acceptable for handicap purposes. That was a somewhat controversial rules change but, remember, Rules Guy doesn’t make the rules—he’s just a guy who tries to elucidate them.
Just as, for the moment, you can’t win the Tour de France at home on your Peloton, nor Wimbledon on your Wii, you can’t post a virtual round toward your actual handicap.
That said, it is not at all unreasonable to think that this could change in the not-too-distant future. Blue-blazer caricatures notwithstanding, the USGA is a more progressive organization than generally understood, and you can bet that this is an issue the governing body will keep an eye on as technology and more evolves.