The further one branches away from the movies, the more interpretation and speculation come into play. LucasBooks works diligently to keep the continuing Star Wars expanded universe cohesive and uniform, but stylistically, there is always room for variation. Not all artists draw Luke Skywalker the same way. Not all writers define the character in the same fashion. The particular attributes of individual media also come into play. A comic book interpretation of an event will likely have less dialogue or different pacing than a novel version. A video game has to take an interactive approach that favors gameplay. So too must card and roleplaying games ascribe certain characteristics to characters and events in order to make them playable.
The analogy is that every piece of published Star Wars fiction is a window into the 'real' Star Wars universe. Some windows are a bit foggier than others. Some are decidedly abstract. But each contains a nugget of truth to them. Like the great Jedi Master Obi-Wan Kenobi said, 'many of the truths we cling to depend greatly on our point of view."
From Christopher Cerasi
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Throwing this here since I can't my original post. Emphasis on different perspectives of characters and sources only providing nuggets of truth.
Thus, taking said nuggets as absolute truth is ridiculous.