Thinking about it, what is really unsettling for me is that it views engineers as a commodity and not humans. Like a tool you just toss away if it's not performing to expectations. The embodiment of human resources, at your disposal and completely replaceable.
It is extremely cruel. I have a friend who, while working at Netflix, had a major health problem and was coldly fired for not performing. As if anyone could perform at 110% (required at Netflix) from a hospital bed.