I agree, nobody should have to, and I don't think I ever suggested that people should! Hostile work environments exist, and there are things an interviewee can do to try to pick up on them.

First step is to actually interview with people from the team that will be your peers, not just your superior. It sounds like the author didn't do that, which is a huge red flag, again, this all seems to boil down to the author being desperately in need of work and not responding to the red flags that were already present.