It’s just hard to know which team you’re going to get. Sam Howell threw for 290 against the Eagles and had them on the ropes. He also threw 4ints against the Bills and single handedly lost his team the game.
On the other side you have Fields who hasn’t done much with his legs so far (probably teams scheming against it) and only had 1 game where his arm made a significant number of plays – albeit against the Broncos.
I find it easier to predict/guess how good teams are going to stack up against one another than how 2 bad teams compare. I wouldn’t be shocked to see Washington’s front take over the game, while I also wouldn’t be shocked to see Fields rush for 100 yards and a TD, and throw for a couple more.