I may be completely wrong here, but I always get the feeling that Alex is secretly super updated on what's going on in the skate world (probably even lurks slap lol), but pretending he dosen't know anything to keep his 'cool' image. Like when he said "that rock tour that thrasher does" etc, c'mon son. Could be he's pretending to get the guys talking about it though.
I like the show btw. I like background noise while doing other stuff, so why not have some dudes talk about skate shit?