Nah. This is mythology that fans like to tell themselves.
Also, you can't say "trends" and "past performance" because they're completely at odds with each other in the point your making. 2023 is a trend.
Nah— don’t agree. Dynasties are real and are built over time. So are teams that historically under-achieve and are perennial basement dwellers.
NEP with Belichik and Brady had a culture, chemistry, and dynamic that carried over many seasons. And they intentionally built it.
On the inverse— you have the Bills in the 90’s with Levy and Jim Kelly. They had the talent, but couldn’t win the big one despite 4 SB appearances. The mentality and carry-over from those losses had a toll on the franchise.
Closer to home— during the 90’s dynasties in Dallas— Johnson established a culture and a mentality that had a carry-over effect. Most would agree that Switzer won with Johnson’s roster and players that continued to apply Johnson’s ways like Aikman and Emmitt. Yet— it quickly faded after that last SB.
So yah. Each season is it’s own expression of the culture, talent, and organizational practices and values that have accumulated over a period of time. Ownership, FO, and HC changes can affect things at a macro level— but there’s a reason the “Garrett Cowboys” look and feel different than the “McCarthy Cowboys” or the “Landry Cowboys”.