There was a YC video just a few months ago where a bunch of jergoffs sat in a circle and talked about engineers being 10 to 100x as effective as before. Im sure google will bring it up.
You asked who’s making these silly claims, I provided one example of YC partners doing it. Not sure who got triggered or what advertising you are talking about, but there you go.
What you showed me is the equivalent of somebody saying, “People are claiming my life would be better if I drank more Pepsi” and the underlying evidence turned out to be a Pepsi commercial.