Tesla's website literally says the Rocket version is "Not approved for public road use." And has "Seating for one." Any battery that can perform that demo can certainly power basic driving. You're accusing them of deception when every modification you describe is plainly stated on their website. (E.g. It's drive-by-wire, and the seats are modeled chassis elements. Yes, it's wildly minimal.)

The expectation that a vehicle that did a literal standing barrel roll (even if only a single time) be functionally equivalent to a Toyota Camry is madness to me. The much more interesting question is what type of localization system in 3D space were they running?