Josh Allen has a passer rating of 99.6 with 2,334 yards, 17 touchdowns and 4 interceptions in 8 games in the playoffs in his career. I don't think turnovers is the playoff problems.
Josh made one bad play. He takes the blame for that. The rest is on Davis not catching a football, Cook fumbling the football, Kincaid not making the 3rd down catch for a first down.