I honestly have never heard of this rumor before. It was a neat episode.
Someone on NeoGaf was complaining that this could have been easily just looked up in the current age of the internet. Blood hopped into the discussion and talked about the amount of research that Damiani went into. He also said this was the tip of the iceberg and some of the stuff Damiani wants to get into can't be easily googled.
I think two important rules that I go by for this show (and previously Pop Fiction)
I ignore any criticism that says "I knew this already, this was pointless." There is always somebody who didn't know, no matter who much you previously tried to inform everyone. People still think the Fire Temple music was changed due to backlash from the Islamic community.
Even if there is a ton of research out there, simply making a video putting it all in one place AND making a video of trying the thing out goes a long way and is not pointless at all. Some people simply post a video of "HEY THIS IS POSSIBLE!" and give a quick sentence summary, but it cuts out so much of the story/info that lead to that point. Even if it's something already proven time and time again, like the Running Man, putting all the info into one video is the point, which nobody really does anymore because in the age of YT, people just want the "result" part.