They're really really not stupid requirements.

The poster you're replying to isn't narrowing to a niche, he/she is simply trying to catch a red flag. You're right to be concerned that there are many interviewers who will climb way down the ladder of abstraction to their own particular niche and then crucify a candidate. But this isn't one of them. The poster even explained that it was only really a negative if all were wrong. I use a similar process as a quick pre screen.

Sailing through all questions allows us to proceed at a relaxed pace. Having nothing to say for one or two questions tells me nothing (it could easily be a fault of my question rather than the candidate). But no coherent answer to any question? Red flag.