Manufacturing for sure was a huge contributor but that's manufacturing of products with pfoa or derivatives in general, since those were widely used. Which is still bad, but more directly relevant here, cookware hasn't itself been much of an issue to people's health afaik.
It's one of those things where it's pretty understandable to be overly cautious and better safe than sorry, but I feel like nonstick cookware took the brunt of the worry when it wasn't the real concern, rather the plants producing chemicals and their use in manufacturing and other products.