Since 2018, the Chiefs have been penalized 94 times in the postseason to 118 flags for their opponents. But again, some of that difference is procedural (delay of game, false starts, offsides, illegal motions/shifts, etc). Opponents have 45 of those and the Chiefs have 28. So the difference in judgment calls is 73 calls for the opponents and 66 for the Chiefs. Over 18 games, that's an average of 4.1 penalties per game for Chiefs opponents and 3.7 penalties per game for the Chiefs. Not quite half as many. And (some of) the likely explanation is home-field advantage: studies have found that teams who play at home are penalized less often than teams on the road, and the Chiefs have spent virtually all of the Mahomes era either at home or playing neutral-site Super Bowls. Since 2018, the average road team in all NFL games, Chiefs or otherwise, has received about 0.4 more penalties per game than the home team.