How many plays did Miles get?
How many 3 and 4 wide receiver sets did Dallas run?
What was the primary objective of the play while Austin was on the field? For example he could be lined up in a 3 wide set, but a draw play is called.
I don't know the answer to any of those questions I have asked. I just know Austin is not there on every single offensive snap and not even out there on every single pass play. He is going to see limited action unless there are injuries to other players. That is the way it is for the 3rd wide receiver on the team. He won't have a large number of receptions. His job is to make the most of the few passes he does see come his way. He has 1 TD reception on 2 catches and averaging 31 yards per reception. That is what he is supposed to do.
The offense is producing. They had a few dumb penalties and missed assignments that resulted in sacks on Monday and that kept their point total down, but they moved the ball well. I don't think Austin is all that, but even if he was he would still not be out there catching 5 passes a game.