Here's the thing that makes me crazy about KC and the refs.....yes there was a defensive hold call on that key 3rd and 5 that would have negated an INT or given them a 1st down if the review did deem it an incomplete pass (which it should have since neither player demonstrated possession when that ball hit the ground). But why is the defensive hold call overlooked by people about that entire sequence/call, when Mahomes' TD run late in the game was heavily influenced by an obvious offensive hold on the perimeter that wasn't flagged? Those type of subjective calls (defensive/offensive holding away from the ball, illegal contact, etc) that many people say could be flagged on nearly every play are simply not called with any consistency when the Chiefs are on the field. The defensive hold in that situation was marginal, and it occured on a receiver not involved in where the ball actually went. Then later in the game we're seeing refs throw holding/PI calls on Bills' DBs getting launched from 30 yards downfield.
Also, why aren't we made aware of whatever late flag that was picked up by the officials on that 4th down heave a Bills receiver dropped? I'd assume that flag got dropped in the event the Bills completed that pass somehow and got a 1st down, and it was some sort of ineligible downfield or illegal formation or offensive hold that would have negated that play, too.
There are layers to the insanity that is the officiating support KC routinely receives, and frankly expects, at critical points in playoff games. I'm not a conspiracy theorist by any means, but it's to the point with the Chiefs and refs that I can't help myself - too much smoke not to be something going on.