Thanks for posting this, because it's interesting and relevant. Pete Prisco doesn't seem like the most reliable 'insider' in the world, but since this is after the fact, I have to believe that at least someone with connections told him this.
I don't really understand why Landry wouldn't want to run the no huddle. He was well conditioned and probably would have kept getting more looks in the hurry-up.
And furthermore, he's a player, not a coach. If the coach firmly believes that running the no-huddle will help his offense score points and win football games, he ought to do it.