The whole article
in The Athletic is here, and I highly recommend it.
But I think this paragraph captures the night in a nutshell:
But even then — and let me be quite clear, those turnovers cannot happen — the bigger problem was what San Francisco was able to do after the first takeaway, and throughout most of the game that followed. On the 49ers first offensive drive, after Stafford’s first turnover, they laced together an 18-play, 93-yard drive that took 11:03 off the clock and resulted in a touchdown. On their next offensive possession (up 14-0 after Stafford’s pick-6 and the Rams’ only touchdown of the night on a Higbee 10-yard reception), they put together an 11-play, 91-yard scoring drive that took an additional 7:52 off the clock. In the first half, the 49ers had the ball for 19:07 to the Rams’ 10:53 and had run the ball 22 times to their eight pass attempts.