It doesn't stop it, of course, Teslas are great cars (ok, Model S is, Model X was a small letdown for me)!
That said, I didn't purchase EAP or full autonomous with my latest order though - this time I'll wait until it does what I feel justifies the price, rather than pay for hope that it will do what I paid for while I still own the car. If Tesla was to extend the bumper to bumper warranty until the car is able to drop me off at the Seattle Airport and meet me 3 days later in Buffalo, NY - I'd buy it today, probably even 2. Of course they wouldn't do that, even Elon is not that crazy (or at least his lawyers and accountants won't let him be).