I wonder if the panels taken directly from Watchmen that you see attached to the Storyboards are part of the actual storyboards he's distributing to the crew, or if it was an embellishment for posting online?
Either way, I think it's a good sign that they're being faithful to the source materials
A friend of mine (a big comic fan) had a full tour of the set, and met many people involved with the movie. In his opinion (which is usually pretty harsh), it's going to be fantastic, and they are "doing it right".