That's a feature. They get the good, undervalued talent early.

"If an interviewer is not capable of determining my knowledge level by a normal interview that tells me right away something up, and I probably don't want to work with them because they aren't too smart themselves."

News flash, all companies are horrible at determining knowledge level by a "normal" interview. The only ones that have a hope are those that use some sort of test or have existing work to review.