I think Reid blew it, as I (and many others) noted, when he didn't manage to get at least 3 at the half.
Cinci made strong adjustments on both sides of the ball and it paid off, but how much more they could have done, looking down the barrel at 21 points instead of 18, is unclear given the final result.
Not sure I think the Niners blew it more than its just being a back and forth kind of game. This is not to disagree about individual performances, but to suggest that those happen in the ebb and flow of most games.