I think the Broncos will roll up some yardage and points against the Chiefs, but if you look at the trends, the Chiefs have had their biggest problems in stopping the run, rather than the pass.
This is not because the Chiefs are a great pass-defense team. They aren't. It's just that when you can run a team ragged like that, why bother to pass anyway?
I think Carr is going to have a pretty good year. He has excellent WRs, a star in the making at RB, and an offensive line that looks a little like Denver's. If the Texans look bad somewhere, it's on defense, and that means that Carr may have to throw the ball more than Plummer, so it figures that he should get more FF points.