There were actually pretty successful. Which makes the story even more of a tragedy. A couple years ago I was rereading mine and made a FB comment about how I really liked at the back of them, they had D&D stats for characters. Jeff Grubb and James Lowder said that almost didn't happen. They had to convince them to include those.
Trying to loophole around DC is just another example of how TSR leadership royally screwed up.
Sad. The Ben Riggs excerpt talks about the potential comic-movie pipeline, which is probably wishful thinking, but they were fun stories and having the stats in the back was fun. This could have easily morphed into modules or campaign setting products.