I come in after the sale to Rodge, so my take is a bit different than some. There was a great group of fans willing to help out DGP at first, and I was one of them. But first GDW wasn't interested in selling a license, and then when they were, there was some question as to unpaid obligations. I don't know how that discussion went between Frank and Rodge, but it wasn't great. Many fans left after it was obvious there would be no DGP/TNE materials. After that, Rodge tried to get AI and Interstellar done, but that led to the hard drive fiasco.
In the T4 era, he tried again... I was more involved there... but Courtney Soloman... Sigh...
The sad fact is, Rodge just doesn't believe anyone would buy the stuff. There have been a number of offers, and I try annually to convince him again. If you are a triathlon fan, you might find him, he's in training for events.
Show him the Ebay sale records.