This is great. I seriously doubt most interviewers could pass the technical tests they give out if they were incurring the huge cognitive load of interviewing for a company while trying to do it.

I'd love to see actual pair programming with interviewer and interviewee. Where they were assigned a random (small) code project and had to work on it together with neither having prior knowledge. It would level the playing field a bit and is much closer to actual working conditions than being forced to write code under duress and close real-time examination.