Isn't Musk's track record simply to shoot for the moon (or heck, Mars), then tem...

Isn't Musk's track record simply to shoot for the moon (or heck, Mars), then temper things down?

He misses all his deadlines for precisely this reason.

Right now, it's just a video mocked together over two days. It's just a very, very broad "idea".

Things will change over time. Why knock something so early in the development phase?