This is a great point and it would be good IMO. More Superchargers stations and in principle no extra wait time. OK why not, sounds good, no skin off a Tesla owners nose.
But here's what I wonder..... I Guess Tesla have offered other car makers to 'buy in', probably with a small profit for Tesla but the other car makers were shocked at the cost for them to contribute proportionally. So lets face it, they are waiting for governments and small private charge companies to install the infrastructure. Perhaps small boutique brands would buy in as mentioned.
In Europe at least, the non-Tesla charge infrastructure is there and its OK, but using it is a pain. You need many accounts, you spend a lot of time on PlugShare, the cost can be crazy and you are never really sure which card/account you need to kick start the thing once you get there (unless you used it recently). Another reason I bought a Tesla.
Note: I am not anti Non-Tesla EV makers, I just have not seen them invest much in infrastructure yet, nor do I think they ever will.
