I think we need to remember when GigaNevada was decided on. The landscape for Tesla was MUCH different. I very clearly remember the world laughing at Tesla. There were claims from regular posters here that it couldn’t be done, was going to cost upwards of 20B and a whole list of reasons it was a bad idea.
People regularly forget that nothing about the world is static, least of all Elon’s companies. The plans for GigaNevada back *then* have received dozens of firmware changes.
Tesla appears to have generally moved on from GigaNevada. That doesn’t make it a bad choice. It was the exactly perfect choice at the time. Now, something else is the perfect choice.