Two Rage is a very solid deck, gnomish, at least in my experience.
Big will, I think what you're missing with the 'dead' cards is the fact that they are 'situational' cards I would normally put in a sideboard in other games. As I don't have access to a sideboard, putting them main board in place of unneeded resources, especially in gearsmith where searching is cheap and plentiful, gives me access to tools to swing games I would otherwise not have answers to.
I also agree whole heartedly that gearsmith is best improved with a second trade. I believe I even mentioned in my article that gearsmith has some weaknesses it just can't make up for. When I designed the deck, I wanted to give new players access to as much of gearsmith as possible while still being an approachable and fun deck.
Sandwich was a good suggestion though, I slipped up there.
Contrary to the bumper sticker it is no longer enough to question authority; you've got to speak with it, too. -Taylor Mali