Agreed. I don't know why or how these coaches just out think themselves and make boneheaded calls.
The Browns game was the same thing. Browns had the ball with 1:37 left to go on the Jags 38 with a 3rd and 6. Jags just used their last timeout, can't stop the clock anymore. Down 5, their only hope is to somehow get the ball back and score a TD. If the Browns run the ball, they make the first down and ice the game, or they don't and punt the ball back to the Jags, who will likely get the ball deep in their own territory with what should be well under a minute left and the entire length of the field to go.
So what do the Browns do? Swing pass, incomplete, clock stops. Punt, Jags get the ball at their own 10 with 1:27 left. They got all the way to the Browns 33 before a couple of incomplete passes iced it for the Browns, but not after having to sweat it out unnecessarily.