Let's see.
There was a chance for YAC in the Texans game but for example, Dak missed a wide open Hurns on one play, airmailed Austin who might still be running on another play, etc. The point being, lack of YAC isn't just on the WRs. It's on the QB as well who simply has not been making accurate passes or making the right reads.
Are our WRs kind of middling? Of course. But to sit there and think what's going on here is Dak is just dropping dimes all over the place and our WRs are falling down as soon as they catch the ball is misguided. And yes, that's hyperbole to prove a point.