Well, I am no expert in how to test caples, and I will not be the judge on whether the WHF team has made a proper test design or not, as I do not know how they test the cables. But in general the WHF team appear very profesionel to me in their approach, and I definately trust their results more than the any test you might find on the internet.
You of course need to set-up clear scientific parameters, and I still believe this is possible, also when testing cables. As described earlier, even though the human brain can play tricks on you, these 'false' positive or negative result is just as likely for one cable as another, and with sufficient statistical power, these effects will be leveled out. Deducting all these effects from the results you will end up with the true result. If there really is a difference, it will be clear.