For me, it's reverse foot all the way.
There are a couple of ways of achieving this, I prefer using null groups but it can be visualy easier to use joints(where each joint is there instead of a null).
What way have you done your foot set up? I've never followed a rigging tutorial from Kurt but the guy knows what he's talking about, so if your tutor is saying it's not right..........hmmmmm.
Can you post a shot of your foot set up, it would offer a point of reference for us all.