KC just played a great game and eventually was able to get by the 49ers defense, no mean feat. They were destined to win this and they did with a couple of lucky breaks and great play execution..
I would think the awesome SF DL would tee off in the 4th Qtr knowing KC would have to throw but give KC credit.
They won by having an exceptional quarterback named Patrick Mahomes. The Chiefs also have a team that is unfazed about playing from behind. See the results of the AFC playoff games. It is no fault of the Niners head coach, his team just got beat by a better one. Go Chiefs!