I am disputing it in the sense that I don't know the answer. But you have to understand my point of reference: I am a Golden Age collector. I know minimal about any funny book printed past 1945. They are my sole focus and main concern in all these discussions. When I am looking at all this information, it is from that perspective. And I think that makes a big difference in how you look at this whole topic.
I do have genuine concern about books from the 1940's being pressed. Not only do you have different and inconsistent manufacturing processes back then, but you also add anywhere from 60-70+ years of storage techniques into the equation. You want to talk about wild cards? And just because the results on pressing one book, with regards to maintaining preservation, were negligible that does not mean you will get similar results on the next book. Every book is so different and had such a different journey to get to today.
I get frustrated because I don't think people consider this enough. They extrapolate one book's results to all books. They press a book from 1968 successfully and think it will be similar for a book from 1942. And the scary part for me is that even with all these unknowns out there, it is not slowing down the amounts of Golden Age books being "processed".