I don't know anything about football, but my husband watches a lot of the games during the season. I just pop in at times and watch with him just for the heck of it. I asked him about what you said. He said Cincinnati had one time out and they did not have enough time to make any play that would have scored points.
He said it was clear that the Rams won the game. He said what Cincinnati did at the end was very cool of them, the honorable thing to do. He said they could have acted like jerks and would have just ended up dragging the game our for a few more seconds and it would be annoying for everyone and futile. He said the Rams would have just taken 'the knee' to run out the clock, because no real play could be made.
We both would have preferred to see Cincinnati take the win, but since the Rams won at the end, they went out on a good note, not acting like jerks or fools.