I once asked why my F/O was low on the visual approach - response was, that's what the FDs were saying to do... We had a chat.
When any pilot says they fly the FD religiously I do a simple demo, (in the sim). One is to stall the a/c with FD's centred and the other is fly the a/c into the ground (crash inhibit on) again with the FD's centred. It tends to get their attention, and their understanding.