This seems an unenforceable restriction on the hours you can use towards the licence. As far as I know, the qualification of the instructor is not recorded in a logbook of the student. If you are taught Effects of Control 1 by a heroic Jedi master A1 QFI or a brand new QUI the logbook entry will be identical.
So its all down to the morals of the applicant and the person who signs the MAS form. Not a good way to police a regulation.