As I read that thread, an engineer--possibly just out of a good school--who does well on interviews is perhaps assumed to be a good hire even though they don't have much experience. (Though maybe they did an interesting project or two.)

On the other hand an engineer who took a job out of school in the IT department of some (perceived) boring stodgy company even if they really aren't (Walmart was mentioned) obviously has something wrong with them in the eyes of some even if it's not obvious what exactly. Better to pass and go for the right new grad who is probably a bit cheaper as well.