Darth Lars said:

I think that a decision to rub out the existence of Mara Jade, Jacen, Jaina, Anakin Solo and Ben Skywalker would be a giant middle-finger to the Star Wars fan community.
Outside the little group of "Original Trilogy Only" die-hards on this and other movie-oriented forums, there is a great community of Star Wars fans out there who have embraced the dozens and dozens of books that have been published since the Thrawn Trilogy.

These fans would do themselves worlds of good by just adhering to their own personal canons. Pissing and moaning that the official canon doesn't love their precious EU anymore gets them nowhere but the Land of High Blood Pressure.