This is all just next level cherry picking. You've decided he's not ready, which is fine, but are trying so hard to discount his successes. The Louisville Bats aren't some Colorado Rockies pitching staff in the IL. They're in fact right in the middle of the pack in basically every statistic. If they were any where near as pitiful as you'd said we should see them bottom of the league in K rate (14/20), HR rate (7/20), RA (8/20), etc.
I am with you, that I don't know know that I believe he's actually made improvements, but you gotta show some level of optimism my dude. Don't just default to being a hater.