We don't force him the ball because we don't need to. Other teams with star WR's aren't nearly as fortunate to have this OL, RB, TE, and a slot WR that's open every other play.
Dak just had his most efficient game of the season, some guys running wide open on plays, with Davis even commenting on how the Browns were obviously focusing a lot on Dez. He is a weapon, and even if we don't force it to him, team still gameplan for him.
He also helps immensely with taking guys out of the box.
We're 7-1 and dominating everyone but one of the top defenses in the NFL. I'm not changing a damn thing about this offense.