Over and over again you post that strawman hypothetical. You really think a QB's true worth is only measurable when he's down by 14 in the 4th? This is using the worst-case hypothetical scenario on which to base a QB, a low % likelyhood of success when up against even a middle-tier D...
and against Carolina TT almost did exactly what you say he cant do, made great throws to march the O downfield, got hosed on a truly stupid penalty, overcame somewhat dodgy clock management, and sadly had only one attempt to a rookie WR to hit for a possible game-winner...when we should have had 1-2 more shots at the EZ imo
The problem in the Carolina game wasn't the last minute QB performance it was the horrors of the first half. He can certainly take some blame for that.