But he does bring the shortfalls to public attention, he has repeatedly said that driver's should not view current version of the system as self-driving vehicle, for example.
His plan is to evaluate the self-driving capability by comparing its performance to the human drivers, in shadow mode, perfect the technology to surpass human driver (10 times safer, per his comments), then present statistics from that to the relevant authorities (who should be qualified to evaluate any claim they make on these grounds), and only then proceed to release the self-driving technology to market.
I disagree that he is first a salesman. He is an engineer - and as an engineer he knows that anything he sells has to work or the product - and the company - does not last. He knows that very well, and has bet his fortunes on his engineering skills.
He is a salesman only second. And that is why this can actually work.