With the internet, the first song released isn't always the first single.
For a Matter of Life and Death, Brighter Than a Thousand Suns was released online, but the single was Benjamin Breeg.
Good point, the internet lets you bypass the studio suits in a manner, and Brighter Than a Thousand Suns was one of the album's strongest tracks.
Time will tell, I guess. According to the track listing "Speed of Light" is ""only"" 5:01 minutes long, which means it's probably not one of the epics, and this album seems to be full of them.