After taking some peoples advice and not commenting on this thread until a report was issued now one has I am completely shocked with what I have read. As a professional pilot I am amazed, 3 completely illegal approaches where the rvr wasn't even close. Descending below minimums 3 consecutive times without sight of the runway. As said earlier even allowing for a sink after go around you do not loose 100ft especially on this type of aircraft. This is rule one of instrument flying the absolute basic! Sorry to say it about two collegues but the term cowboys is becoming more and more appropriate.
WhatAstory to answer your question, atc should not need to ask the crew this, any professional crew when hearing rvr's well below their limits and the limits of their aircraft should not even attempt an approach, they shouldn't need to be asked.