I don't think randomness is that bad for most of us. We all should remember even though it seems like people got screwed, almost as many people got lucky. Getting lucky wins is what keep people gambling at games they can't beat.
It's not against everything "we" were ever taught. I was taught to win the game (not run up the score), and not giving the ball back ensures, for all practical purpose, you win the game.
Stepping out of bounds wasn't the right strategy, but going down inbounds after the first down was the right strategy to keep the clock running, minimizing the number of center snaps (which can be fumbled) on the kneel down and the amount of time left on the clock.