I’m not sure what the usual drill is for AAA exposure. But 70 PAs at that level seems skimpy to me.
Reds don’t want to bring up Barrero and have to send him back.
I’d let the AAA pitchers adjust to him, they’ve now had a few weeks to do so. See how he does, give it until mid-August.
Then bring him up and play him everyday and start him in 2022.