What did the 49ers do that ended up helping the Chiefs get another ring?

Will Brinson, CBS Sports, on Super Bowl LVlll and what he saw from his Las Vegas seat.

Is it crazy to say Dan Campbell would’ve won the Super Bowl, if he were coaching in Kyle Shanahan’s place? How did San Francisco shut Travis Kelce down? Was it more of a: The Chiefs won the SB or the 49ers lost the SB, in your opinion?