What I don't understand (and maybe I'm just naive) is how it's legal to test a so-called "beta feature" -- which, if it fails, clearly can be dangerous (lucky no one was hurt) -- on customers in a live environment, vs using its own test drivers at the very least? I can't imagine this being legal with any other form of transportation (or just large equipment; they don't even sell lightbulbs that aren't CE certified).