Terrible clock management by Houston. They had the ball in FG range, GB has all their timeouts, and they hand off twice to Mixon to concede the FG. They should have ran their offense to score a TD or get a first down because GB was getting the ball back with plenty of time.
Then GB gets into FG range with :52 on the clock and the Texans don't use their timeouts to give themselves a chance to get the ball back in case they make the FG.
They gave a winnable game away.