[nerdponx]

I've handled interviews like this before by saying "normally I wouldn't use Models and Controllers for this task because X, but since you asked, I assume you just want me to demonstrate that I know what Models and Controllers are, and that's what I'll do".

How they react to that is telling. I've had interviews where they say "great point, that's exactly the kind of thinking we need!" and other interviews where they take it as a challenge to their authority. The latter is of course a red flag and you should excuse yourself from any further interviews.