Of course it was a team loss. Thing is, if it had been a team win, there is no doubt that the top storyline would have been "Glenn leads his team to a Grey Cup." Well, he didn't.
It's not like the rest of the Stampeders suddenly became inept. There is clearly a solid group of players there, one that won more games than anyone else this year except BC, and then knocked off BC in the playoffs. But collectively, they didn't play well in the Grey Cup - including the QB.
Great QBs sometimes just find a way to win. They carry the team on their shoulders if they have to. And they do it in the games that count the most. There's a reason guys like Ray, Calvillo and Damon Allen have led their teams to multiple Grey Cup victories. It's not just random, and it's not just luck of the draw.