Kind of, Chit asked for one specific example, was given a very solid one, and then came up with a bunch of ad hoc "problems" with the case study. That is the problem with case studies, anyone can say "but-for this element, the result would be different, it proves nothing" no matter how strong the link is, anyone can create an ad hoc problem.
In other words, Mant could post anything and Chit would find a problem with it. Such are the rules of the board. That isn't examining the evidence objectively, that's "I want my penis compensators and will manipulate the facts I accept to get the result I wish."