I always enjoyed the fact that this episode aired in 1996 and the Broncos went on to win the Superbowl in 1997, 1998, and then again in 2015. There is no question that the Broncos have been a much more successful franchise than the Cowboys since the air date of that episode. I guess Jerry Jones isn't as smart as Homer.
Or Jerry Jones wasn't as lucky as Homer. Don't judge intelligence on outcomes, money is just a proxy for success which is a proxy for how smart a person is perceived. Drawing causal relationships on 2nd order effects is inferior and goes against Occam.