But my reading of Orci's quote...
Was that out of all the non-canon stories, games, deleted scenes, books etc, the Comics were the 'closest' to canon and so to those of us wondering about the fates of Picard, B4, Geordi et al they had the truest answer.
Canon has nothing to do with "true." It's all imaginary stories anyway, so it's kind of crazy to try to apply concepts like "true" to any of it. Canon just means the story as told by its original creators, or by the people hired by the copyright owner to do the official continuation. All Orci actually meant was that since the comics were under the supervision of himself, one of the writers of the new movies, that meant they reflected the inside knowledge and intentions of the screenwriters more closely than an ordinary tie-in might. He was speaking in terms of the tie-ins' consistency with the moviemakers' ideas, that's all.
But they'd hardly be the first tie-ins to have that kind of insider connection, or more. Jeri Taylor wrote two
Voyager novels while she was that series' showrunner. She considered them canon at the time, and incorporated ideas from her novel
Mosaic into the episode "Coda." But once she was no longer the showrunner, her successors ignored her novels and contradicted them in a number of ways. Again, it's not about "truth," it's about the original storytellers' intentions and ideas about the series. Once Taylor was not in charge of the series anymore, her intentions and ideas ceased to be binding on it. (Note that Orci is in the same boat now -- he's no longer directly involved with the series, so his ideas about its continuity are no longer binding on either the canon or tie-in creators. If the makers of the next movie or series wanted to establish something that contradicted
Countdown, they'd be perfectly free to do so.)
Heck, before that, Gene Roddenberry himself novelized
Star Trek: The Motion Picture, so the ideas it contains no doubt represent his vision of the Trek universe very faithfully. But by the time he created ST:TMP, he disregarded a lot of the ideas he put into the novelization. Because fiction is not truth. The difference between them is that fiction is an evolving creation and the creators' view of a given world is subject to change and refinement over time. The same creator may have different ideas about the universe now than they had five years ago, because they've had time to think about it more and have new ideas and change their mind about a lot of things.