Most of the NFL has bad offensive lines. Seattle’s line can’t block a lick. Colleges don’t prepare them for the pro game, and seemingly every team has elite edge rushers now. The two best o lines are supposed to be the Cowboys and the Raiders. Denver’s defense pretty well shut them down.
When’s the last time we heard that Brady or Rodgers just can’t get it done because of their poor lines? And both of those guys struggle behind some lousy line play. 
There are going to be games where the game plan goes out the window and the QB has to fling it and will his team to a win. Trevor has shown nothing to indicate he can do that.