I don't think people are forgetting anything.
He's likely the best to ever play the position - that's what people remember.
No one is saying Brady isn't great, it's just that he's not the greatest.
Not to make it seem that he's not great, but since you started this inane tangent....Brady has surely sucked in some big games as well - he was outplayed by daylight today. He was brutal against the Ravens in the AFC title game last year and even worse in a game against them in the 2009 playoffs. (Truth - Ravens scared the s--- out of Brady.) He was terrible against the Chargers in the 2008 AFC title game and terrible in the playoff game against the Chargers the year prior. He lost a playoff game to Rex Ryan. Rex Ryan. He was miserable against the Broncos in the 2007 playoffs, etc.
Even when they've won the Super Bowl - he was marginal in the first playoff run, solid in the second and brilliant in the third.
Well, you won't over a lot of Brady games, and I mostly agree. Disagree on the second run when he had a top 5 Super Bowl performance. That was his best performance. Better than anything Manning has ever done at any point in his career. Brady without WRs is going nowhere, we know that. Which explains his performances in those last couple years, especially without Gronk. On the other hand, he tied the Super Bowl record for completions against the Giants 2 years ago. He had a good game. With Gronk, he's ripped apart that Ravens D over the years and is actually 6-2 against them. As for 2007 Chargers game, my God, that was one of his best performances. His WRs were Reche Caldwell and Donte Stallworth, street free agents. And the Patriots somehow scored 27 points against one of the best defenses of the last decade.
But here again I'll say it: Peyton Manning has been awful. You can go through Brady's bad performance,s but he's had a lot of good ones. A heck of a lot more than Peyton Manning. Manning's are few and far between. Try applying the same fine comb through his performances that you just did to Brady. He's been pretty bad.