Idk, I'm usually on the "Driskell is a Turd" train, but I think I might agree with him on this one.
Even with Austin's injury struggles and off-field issues... he was MASSIVELY underutilized this year, and that goes back to Tommy and BK. A dude averaging 18+ YPC needs more than ~45 receptions.
You could make the argument that he was averaging big numbers on each catch because he's a deep threat that was targeted down the field more often than not, and it's not realistic to jack up his targets much more when he's constantly running vertical routes. And you could also make the argument that the early season offensive struggles affected everybody, and that KA himself left ~200 yards on the table with drops.
But the reality is that once they decided to stick with Coan and operate with more tempo as the year wore on, they should have been force-feeding KA. He seemed to be really good on short routes because he was a big athlete that defenses had to respect, and he seemed to turn quick slants (which had been missing from the playbook) into big gains whenever given the chance... but they only let him run a slant off the line like four times all year, if it was even that many.
I understand you had Kyren, Tyree, Mayer, etc., and a lack of depth at WR, but they should have done more to get him closer to 75 receptions, IMO.