We're not talking about one guy, when talking about goat, we're talking about all. With that, we must consider all qbs and hpw they stack. I'm not talking about the rings and his greatness, I'm talking about the idea of rings and them being able to be objectively measured.
Do you consider Bradshaw to be a better QB than Marino, if not, then why? It will be because of his defense, and his stats and other things. There are far too many factors that determine a championship, to solely credit it to a QB. This makes it an impossible factor to be objectively about.
Therefore, it cannot be used as a factor. So if you want to consider that blank and white so be it. However, it is after careful consideration of everything that goes into it, that i think it should be excluded. If that's what you consider black and white, then everything that comes out of the scientific process is a logical fallacy.
You can point to his stats, you can point to his performance under pressure, those are mostly individual achievements and can be objectively measured. The same cannot be said about a championship. A QB alone throws the ball accurately, a QB alone does not win a championship. It can very easily be argued, because of the close game, that the defense of the Patriots in the second half had just as much, if not more, of a factor in winning that game than he did. They forced turnovers, they stopped drives.
You can also argue that tyne three penalties on 3rd down helped brady to score. You can point to the holding penalty that pushed the Falcons out of field goal range as a factor in letting brady tie. Without that penalty, the field goal is probable, and the Falcons win.
They're are so many what if's and subjectivity in a game that a win or loss cannot be solely attributed, and therefore cannot be a factor in determining greatness.
How many times do people say, "oh that QB didn't lose it, the defense did"? (Ie. Colts fans).
I'm not arguing that he isn't the greatest. He is top 3, arguably #1. I'm saying that because of all things considered, championships cannot be factored into it. Which your last paragraph all but agrees with.