It's a "maybe" because I don't have any more data points than what's present in the video - only assumptions. But I strongly assume this could have been avoide

It's a "maybe" because I don't have any more data points than what's present in the video - only assumptions. But I strongly assume this could have been avoided by more thorough testing (e.g. use a contraption to shove various inanimate objects in the path of the car at various speeds [both object and car] in various light conditions). And iff a proper investigation finds out people responsible for this accident (engineers doing dirty fixes, managers neglecting safety, the driver just being an unaware dummy; you name it), they should carry the consequences same as a human driver would. And yes, their self driving cars should stay of the road until the fault has been found and fixed. I never claimed the opposite. (Aren't they? IMHO it's the obvious thing to do; but then we're talking about Uber and their poor sense of responsibility...) Eventually "maybe" has too weak of a connotation in this context (as a non-native speaker I sometimes find it difficult to pick the correct variant for the exact thing I want to implicate) - for which I apologise if I mislead you there.