(Also, it's just an analogy. I think perfect hiring would be much harder than bug free software).
Anyone who tells you differently is deluded or lying.
I don't know if it's possible for anyone to answer this question but: does any organisation have a hiring process that's 5000:1 better than the average equivalent, like NASA's 5000:1 software defect rate?
Anyone who tells you differently is deluded or lying.