These conclusions are absurd on so many levels. Flawed methodology, flawed assumptions.
I know from personal experience (having lived there) that Patriot fans are bandwagoners. Boston has too many distractions. If, in 5 years, the Celtics and Bruins are killing it and the post-B&B Patriots are bad, the traffic jams out to Foxboro will be a thing of the past.
Who rationally believes Dolphin fans are in the top half of the league??? They're notorious for coming late (if they come at all), leaving early, and blowing off games.
Who rationally believes Viking fans or KC fans are in the bottom half of the league???
What does "Road Equity" have to do with a home fan base? Is KC penalized because locals don't fly out to Oakland or SD/LA? Or because Oakland has a smaller stadium and SD/LA has its own problems drawing?
The Bills actually benefit from "Road Equity" because they play every year @ Jets and @ Pats, two large markets that sell out. The sellouts have nothing to do with the Bills being the visitor.
Bad as the Browns are, they don't have great loyal fans??? Where is the metric for supporting a team that loses, which may be a better measure of fan loyalty.