I don't think it's comparable to Theranos. He took over a company w/a heavily (but still in a pre launch) product in its "beta" phase and was chosen for an obvious reason (get the tech into cars). He doesn't have the technical chops to understand the tech enough to know whether it's ready for prime-time or not aside from looking at metrics some of his engineering subordinates gave him.
Elizabeth Holmes didn't have a product which functioned like she claimed at all (nothing compared to the tech Waymo has already developed)... She assumed w/enough effort her ideas would eventually come to fruition, so she lied about the progress her company had made so gullible investors would fork over $$. Waymo has non-tech people trying to sell a tech which is still in development, they've made an (incorrect) assumption about when it'll be ready, as I doubt anyone really thinks it's flat out impossible... just really difficult.
Elizabeth Holmes didn't have a product which functioned like she claimed at all (nothing compared to the tech Waymo has already developed)... She assumed w/enough effort her ideas would eventually come to fruition, so she lied about the progress her company had made so gullible investors would fork over $$. Waymo has non-tech people trying to sell a tech which is still in development, they've made an (incorrect) assumption about when it'll be ready, as I doubt anyone really thinks it's flat out impossible... just really difficult.