The defense is still pretty good, mostly. This is 2018, and other than maybe the Baltimore Ravens, every defense is going to get caught with their pants down occasionally, or often. That includes all the “powerhouses” from the Jacksonville Jaguars, to the Minnesota Vikings, to the Philadelphia Eagles.
The Rams defense is currently ranked 7th in the league in points allowed. We haven’t seen an all around dominant performance since cornerback Aqib Talib was lost, but they have almost always made plays when they were needed late in games.