So is the implication here that humans are less faulty, or that there's something intrinsically wrong about an AI making this decision rather than a human?
If the former, then this is an issue that the technology will probably eventually solve. If the latter, well... that doesn't seem very justifiable, to say the least.
If Amazon has leaned too far in the direction of automation without oversight, then we'll see other firms fail to adopt these same practices. But it seems pretty inevitable to me that we'll see many more AI-driven hiring/firing decisions in 10 years or so than fewer. And if some sclerotic regulations try to slow this down, that will likely be unfortunate for consumers.