Yeah, it's a separate track, but there's still 6 minutes of silence after Glass Arm Shattering. So let's say if you've got your media player on shuffle all to provide background music for a party or something, then Shesmovedon can come up on it's own, starting and ending like a normal song, but Glass Arm will still have 6 minutes of silence at the end before the next track comes up. A minor annoyance, sure, but isn't bitching about minor annoyances part of what the interwebs is all about?
And it's (Shesmovedon) not listed on the tracklist on the back of the cd as far as I know. Not sure if that qualifies it as hidden but whatever.