What is disappointing is completely ignoring valid points and screeching for evidence, that has been given, without seeming to have any of your own.
Yes Wingman has biases, but there are 1.5 million fractal logs and almost 3.8 million raid logs there, so you can very easily argue that it is representative data. That is a huge sample of players, only ONE player in the group needs to have arc & upload the log, and seeing as people are calling for balance around Fractal CMs & Raids, it's entirely relevant data.