We weren't perfect, for a variety of reasons, but your premise is that Dak can't play well without Smith. But the Miami game kind of disproves that theory as Dak didnt play poorly at all, he actually played decently, if not well. Certainly, he wasn't great.
The point being that basically saying Dak can't play well or shouldn't be expected to play well in the postseason if he doesn't have Tyron Smith is just excuse making from the Dak homers. And then trying to use the Miami game as proof is kind of laughable. He was fine in that game without his LT. One bizarre fumble away from likely scoring 27 points, which is a pretty good showing for the offense.