They do make a valid point re: Wash electing that the run game wasn't going to beat them. Reminds me of the days of yore when I would look at the stat line and pick out good things like "oh hey nobody has run for 100+ yards on us in X weeks."
Rams had a patient approach and played field position and built that lead like it was a playoff game. They're a nicely tuned team for how early we are in the season IMO.