Yes, that win over the Packers is on the short list of the greatest Rams regular season games ever. The game with the Colts the next week is also on that list. It was the final game of the season, and the Colts came into that game undefeated. The Rams were one game behind the Colts for the division. The Rams blew them out to take the division title. Both teams finished 11-1-2, with one of the ties being between those teams. The fact that the Colts entered the final game of the season undefeated but didn't make the playoffs is one of the most remarkable things that has happened in NFL history.
