Why call them researchers?
They usually overlook... Scratch that, they always
Overlook everything until they come to a retarded conclusion that it is something it isn't or better yet they just don't understand the very thing they label (Since when have these people actually played video games?).
Also they probably say anything they want to when they have nothing to make themselves look good in front of people (Seriously, they'll believe anything they say almost).
It all comes down to the person, not the gamer; they probably knew this to begin with but wanted something else to blame for more money or some other kind of "Research abuse" to the point where they ruin something just to better themselves in the situation (Wait, did I just say that before but differently...).
Well you probably get my point.
This is my theory though, although seems more likely.