Brady nearly got himself picked off at one point when he targeted Gordon in tight coverage. The DB had a much better chance at the ball, but Gordon instantly turned into the defender and broke up the interception. Might have been Gordon's best play of the game and one of his best since he became a Pat.
On Hill's wide open deep-crosser TD, it seemed to me that Harmon thought that he had help somewhere to his right. As Hill begins to cross Harmon's face from left-to-right, Harmon turns his hips to the left, in the opposite direction. By the time Harmon corrects, it's pretty much all over, although Harmon did compound the problem by taking a bad angle. Actually, for almost any receiver BUT Hill, Harmon's angle probably would've been good enough.
Similar mistake from JMac on Hunt's big TD play. He seemed to let Hunt go as if he expected help behind him (possibly from Harmon). Still JMac demonstrated that he's NOT "slow". He caught up to Hunt just before Hunt got to the goal line. If JMac had reacted a step earlier, he might have prevented the score.
On the big KR, I thought that a different officiating crew might have thrown a flag against the KC player who was on Slater. The KC player clear had Slater by the jersey/shoulder pads for a second, and the pushed him to the turf from behind.
I think it's worth noting that the Chiefs scored twice from short fields (Brady's fumble and the 97-yard KR) and scored twice on totally blown coverages. The Pats didn't get any "gifts" like those and still put up 43 points (while also "leaving some plays on the field").