On Football analyzes the biggest topics in the NFL from week to week. For more On Football analysis, head here.___Josh Allen came out of his cage and he’s doing just fine.Buffalo’s franchise quarterback gave teammates and Bills fans reason to joyfully sing along to “Mr. Brightside” again Sunday.If destiny is calling Allen, he’ll end this season in New Orleans hoisting the Lombardi Trophy.The Bills took a big step toward that goal with a 30-21 victory over the Kansas City Chiefs, ending the two-time defending Super Bowl champions’ bid for a perfect season.Allen threw for 262 yards and a touchdown and ran for 55 yards, including a clinching 26-yard score on a fourth-and-2 with 2:16 left.”The Josh Allen experience at this magnitude has been phenomenal,” said Bills wide receiver Amari Cooper, who joined the team last month following a trade with Cleveland. “He’s a great player — the old adage, big-time players make big-time plays in big-time situations, and that’s exactly what he did.”It was another performance that strengthens Allen’s MVP case in a season that began without much hype. The Bills were mostly overlooked in the AFC after falling short in the playoffs again last year and losing several key players in the offseason.They weren’t even favorites to win the AFC East. Oddsmakers made Aaron Rodgers and the New York Jets the betting favorites. They’re 3-8 while the Bills are 9-2 and cruising toward their fifth consecutive division title.Allen is used to the disrespect. He shrugged off being voted the most overrated player in the league in …