Geez, you just wanna convolute everything. I wouldn't be as eager to move on if he had done what those guys have already achieved. That is as honest & straightforward as I can say it. Getting there & not being the reason the team lost shows the player might very well get it done in the future.
That's a completely different scenario from Danny. I very much lean toward if a guy can get you to that point three straight times, the problem probably isn't him. Does that mean I would feel that way in every scenario? No. The QB's performance in the losses would have to be taken into account.
Heck, if we had gotten to a couple conference championship games & lost respectably I would probably feel like our recent teams had overachieved or gotten as far as they should have. But they should have gotten further than they have.