"So, who are you?" "Stupid question."

What an interview! I had never seen this clip before, it's really something. Facts and context are important for sure, but as someone who isn't clued in on the Sanger drama, Wales could not possibly have made himself look worse. And in under a minute!

As you said, the interviewer is in the right, carrying out the job of interviewing, by pushing Wales as he did. To call him a "jerk" is silly, I think.