I don't want to step on Booch's toes here, 'cause he knows more than anyone on this board, but I think the short answer is: BC just isn't a very good team overall. They have a couple of pieces (Rourke, in particular) which allowed them to over-achieve at times, but that's not sustainable. Just a couple of examples, but Calgary and Winnipeg are better overall teams (deeper, more pieces) and will always be able to manufacture a win in multiple ways (as you saw the Bombers do ad nauseum this year) but BC had to pray Rourke would pull some magic out of a hat to get their wins, otherwise they were at best a mid-pack team all year.
Forgive me, Booch, but I *think* that's what was meant...