Thats one way to look at it.
The other way, how I see it, is that their offense had done nothing all night. Every time they got into the RZ they self destructed with penalties. They were down 6, and a FG would still put them down another TD. It doesn’t matter how good their defense was playing if they couldn’t get into the endzone.
I think Shanahan recognized his team was was limited and tried to maximize that opportunity. With Rodgers on the other sideline, and your team basically unable to move the ball consistently and finish when it counts, I like the call on 4th & 1