PWG is interesting. They declined to be apart of FloSlam. And they are about the last of the DVD business model promotions that are successful. ROH was founded on the DVD sales model. PWG resists any effort to run TV because it would mean losing certain talent. Right now, they can book anyone they want (non-WWE) and some guys, like the Bucks, who have signed exclusive deals with ROH, TNA or New Japan add clauses allowing them to do PWG. They then sell their DVD's and because they have such a great rep, they make money.
It would be hard for them to be on WWE unless it was past shows but I still wonder how the contracts with certain guys would work.
In that Vice article, the former head writer had an interesting take. He basically said that while Hunter's vision has produced the best talent and best wrestling ever, its not creating stars. All the 5 star matches in the world cant replace the benefit of an Austin or Rock. Its an interesting perspective.