I personally like that the new movies will not be forced in to some crazy continuity Twister game.
This is ultimately what the whole CANON vs LEGENDS is all about. I know that the Zahn-Thrawn trilogy is one of the most beloved story arcs of the EU, but even that is something where if the movie had treated that as part of the backstory, TFA might have lost the audience in serving those story points. But more likely TFA would have been a completely different movie.
Yes, that is why I support the whole Legends thing even though I own and have read all the adult novels and a lot the younger reader stuff that has been released since the original ANH novelization.
There would be just too much to have to adhere to if Disney were to follow the old EU and would severely handicap themselves. Not only would they have to adhere to all the characters that had died, they would also have a far future endpoint to build towards due to the Legacy comics.
The Zahn trilogy is always held up as an EU story that feels the most like Star Wars and many EU fans wanted to see that trilogy as Episodes VII to IX. While it does well on the page, it would make a really boring trilogy. There isn't too much in the novels to adapt as an action movie. Even if it were made at the time of the novels release, it just wouldn't have been that great. While Thrawn is/was a tactical genius, I don't know how well that would translate to the big screen. I'm not sure where they are going to go with Snoke, but Snoke could have more potential, especially if he is skilled in the dark side.