Eh, Kupp looks ok, he's getting a lot of single coverage because of Sammy/Woods/Austin.
Problem is exactly what happened on Sunday, Goff looks for Kupp too much. Right off that snap in the last drive, he zeros in on Kupp, who hasn't beaten his guy and throws the ball to him, which is intercepted.
Kupps talent level is no where near Watkins, who took a 5 yard slant for 25 yards on Sunday. The YAC was what everyone here wanted to see. Caught the ball put his foot in the ground and was gone.
This is a ridiculous analogy. So then by that measure, why have a good Oline? Why have a good RB? Why have a good TE? I mean if your contention is that a good receiver is wasted with Tyrod, then all those positions are wasted.