Which would be about the same conclusion you would draw about the last offensive drive in ANY close game a team loses. Which makes it virtually useless as analysis.
I think, rather than blame the QB for not being the hero in a situation where the leverage is against him (the one thing the Seattle D couldn't do was allow a TD, it was happy with a FG attempt), is why the coach puts his offense in that situation way too often and usually too early.
Players do need to make plays, but far too often the offense and defense have to reverse course in order to prevent what was unlikely just a few drives before.