Even in the candidate's own telling, it is obvious that they misread very strong signals from interviewers. I've sometimes been that overly clever programmer and I've had to deal with it too, on the one side it's great that they bring energy and brains, but it is exhausting. At some point when moving fast you just want to have some people that you can go "hey just fix this bug wouldya" and trust that they're not going to come back with a clever but convoluted and inefficient hack.

Agree as a general rule BUT candidates can (and some WILL) lie to those questions. See how they react naturally although in a simulated scenario can give you a better idea.

But you should do both things, probably in 2 different interviews.