While I agree I think the pendulum has swung way too far on the whole "wins are a QB stat" concept, but I will say that a lot of that is born out of the notion that a) they're paid gigantically more than everybody else and b) QB statistics are kind of just "yeah whatever" these days. 5,000 passing yards is barely even impressive, you basically can't touch the QB in any fashion, and all of the rules are setup for QBs and receivers to do basically anything they want out there. Which means at some point, you see the same gaudy performances and you're like "yeah OK, cool. Been there, seen that".
I think assessing QBs off statistical output is becoming just as a ludicrous as assessing them based on W/L record.
I'm the outlier in these thoughts, but I think there's a LOT more QBs in this league that are capable of winning a SB than most people think. Most people think there's like 5-6 in any given year. I think there's a shit load more. And I think the difference between the have's, the wills, and the wont's has a lot less to do with the performance of the QB and a lot more to do with the performance of the team, the coaches, and the leadership in the Org.