The Leafs know how to win playoff games, they just don't know how to win playoff series.
More specifically, they look like championship material when their opponent takes too many penalties (Ottawa, game 1), or comes out flat (Florida, most of game 1 & 2), has really bad goaltending (Ott/Flo in the first few games) but once their opponent starts to play playoff hockey and/or their goalie decides to stop pucks Toronto is pretty awful.
If Florida played anywhere close to the way they did for 50 minutes in game 7 they would have swept the Leafs. In fact, if not for Ottawa's inexperience & sloppy goaltending early on they likely they would've beat Toronto in the first round.
Which is crazy because the Leafs finished 4th overall in a division that produced 5 playoff teams. In other words, they don't pad their numbers against weak teams. Their roster - regular season-wise - is as good as any team in the league (or very close).
But when $40M+ in cap space manages one goal combined in the final four games of a series, all that doesn't matter. It's just a reality for this group, they can't rely on their stars when they need them most and so they lose, every year.
As for game 7 itself, that was most of the team s***ing the bed, not just the stars, so I don't even know how you begin to address that. But to answer OP's question, no they don't deserve any credit.