Anyone who doesn't want to see Brady vs. Mahomes must hate football, if not sports.
I can't think of any time we have ever been treated to a GOAT vs. GOAT championship round in a team sport. Have we even come close? Gretzky never squared off against Lemioux or Orr in a Stanley Cup final. Jordan faced late career Magic, but never Kobe, LeBron, Shaq, Bird, even Hakeem. We ever got to see LeBron vs. Kobe. In the NFL, the closest we ever came was probably Montana vs. Elway or Manning vs. Brees.
Brady vs. Mahomes would be (provided Mahomes stays healthy) the ultimate matchup of GOATs.