I'm not hating on them for taking advantage of grants, loans, rebates, and abatements. Of coarse any business that has those kind of things available to them will take advantage of them.
I understand what you are saying about the superchargers, but you can't ignore that cost.
Musk might be a genius when it comes to most things, but thinking that you can bleed cash to the tune of 500 million dollar net losses annually isn't being a good business man, it's being arrogant and ignorant.
Your Subway franchise analogy is a little bit off.
This would more accurately describe the situation:
Joe opens a Subway. He is losing money because he is paying some large payment on the building, and a franchise fee. A lot of those costs will disappear in 10 years, and after that Joe will be greatly profitable.
Joe gets the bright idea to promise to have a sub he sells for $1. He can't make the sub for $1, and the store obviously has production limitations. So the only thing Joe is doing is ensuring his company loses MORE money. It will take time away from his sandwich artists who make $5 subs (which are profitable) as well.