To get a job you don’t have to agree to the nth degree with everything that’s said to you. You just have to be a nice more-or-less qualified person who’s enjoyable to be around and communicate with. That’s a foreign concept to many people (not just programmers) so they look for some “trick” like never disagreeing.
It’s even better that this trick makes them feel better about being a miserable wet blanket because they’re putting one over on the interviewers.