Another possible coaching mistake not many are talking about.
Football Outsiders:
the Texans faced a fourth-and-8 at the Tennessee 37 with 6:50 left. Bill O'Brien decided to punt, which led to a net of 12 yards in field position after a touchback and 5-yard penalty on Houston. That sounded like a ludicrous decision to me, so I looked at the Game Winning Chance (GWC) according
to EdjSports to see what the preferred decision was. By punting, Houston's GWC was 44.4 percent. Going for it with a pass bumped them up to 49.4 percent. The recommended decision was a 55-yard field goal attempt, which moved the GWC to 51.0 percent. Kicker Ka'imi Fairbairn had missed a 54-yard field goal earlier in the game, which may have impacted the decision to punt.
With the Texans in no man's land at the 37, they probably should have tried something minimal on third down to set up an easier fourth down or field goal. Instead Watson had tried another deep throw for a touchdown, but missed the mark badly. I still think punting was the worst possible decision there.