My thoughts. Dak could have played better and missed on several throws. However, I think there are valid reasons why he struggled.
1) The interior of our OLine (especially the left side) was constantly getting pushed back into the pocket. It is hard to make throws when your LG is getting pushed into you.
2) Early in the game we were constantly in long yardage situations deep on our side of the field due to penalties, negative running plays, or sacks.
3) Collins still seems to struggle at RT. I still think he needs to be playing guard.
4) Play calling was super conservative and predictable. Allowed the Panthers to stay in the box and keep Zeke contained while applying pressure on Dak.
5) Outside of Zeke there is absolutely no playmakers on the offense. Our WRs and TEs don't strike fear into any defense. We may have the worst set of skill position players in the NFL.
My point is this, mediocre/below average OLine play, lack of offensive play makers, plus lack of a running game = a QB that is going to struggle when playing a good defense.