Giving a TIF person a take off or landing?? "A courageous decision, Prime Minister" More like stupidity on the part of the instructor
There's absolutely nothing wrong with letting a TIF student do a take-off or following the instructor on the landing. It is a Trial INSTRUCTIONAL Flight. At what point would you let any other student do a take off? Wait until they get up to circuits?
If the instructor allowed the situation to degrade to the point where the aircraft stalled, (if that even is the actual cause) then there's a bigger issue to be dealt with, but there is nothing illegal or stupid about letting a TIF take off.