Look at the different tests that have been used for 40 years. Sure there's been a few outliers over the years. Marino and Kelly for two, but overall the tests have been correct. BTW, no QB from a single parent household has ever won a SB. Hopefully CJ will be the QB to break this trend.
Flashback to this thread and the hilarious takes in that thread: https://bbs.clutchfans.net/threads/qb-or-not-qb.316832/the hilarious takes: