There's a great deal of truth to this and, like you, I think it's important to look at each of the losses in context.
The KC divisional at home was a MASH unit on the defensive side of the ball, and we had to play nearly a perfect game. It should have gone to OT, and it didn't work out. Nobody's fault, really.
The Denver game was lost on an atrocious call and some casual play by Josh. But, again, let's not forget that he was playing on a compromised foot that probably affected him a lot more than he'd let on. The throw to Knox in Q4, and what I think was a missed TD to Samuel earlier in the game, probably reflect that. And, on top of that, if we could have had a *bit* more from the defensive side of the ball, that one still is likely different.
The KC AFCCG was lost on a bad call, a missed offside call at a high leverage moment, and a Kincaid drop. Plain and simple. And, again, that's another one where if we get just a bit more from the defense, then it's a different game.
I don't disagree that Josh has to be better. (Too much casual play against Denver is the big thing.) But it's hard to fault the guy for either of the KC losses.