Did anyone else find the title as a little cringey? The name of the GDC talk was "Witchcraft: The Alchemy of a Crafting-Based Economy", but I guess that didn't sound as high tech as "polynomial least squares".
Yes, it came across as bragging about using a basic curve fitting technique and dressing it up with jargon. There's probably more interesting work done there that didn't make it to the article though.