This is true. While I have some issues with Synder's directorial ticks, "Watchmen" is an almost too faithful adaptation of Alan Moore and Dave Gibbson's graphic novel.
I only read the book shortly before the movie came out, so I'm no expert, but it still felt to me like Snyder glamorized the characters and action FAR too much, and turned everybody into a bunch of slick, ass-kicking superheroes.
He might have captured the look
of the comic really well, but not the tone.