He’s been open a fair amount if you just lock in on him. Either he’s so far down the progression that Fields doesn’t make it to him or Fields is trying to force the ball elsewhere.

Prima Donna/Whiny NFL Wide Receivers are older than either you or me. Him whining means nothing. Particularly given that this was his M.O. at his last stop.
The fact remains that it's tough to target or throw to the guy if he ain't on the Field. If he is only on the Field for 19 plays (with God knows what being actual passing plays) its more than likely either his fault or the coaches than it is Justin Fields's.

Or he chooses not to throw it.

Because you are stupid, maybe read some books educate yourself.

We walk, talk, and won't shit our pants

That too. Somebody make break loose down if only Fields can get 5 more seconds to pat the ball erratically.

I saw something earlier in the week where a Bears receiver was running a post/corner and for the NFL was wide open and he chose to not throw the ball, it was really strange and bad.

HE DOESN'T HAVE TIME