Not impressive. Still above league average.
Again, pitchers adjusted to him. That is the main reason his numbers have gone down. He is being pitched to differently than he was when he was first called up. He was crushing fastball/slider combos when he was called back, and he was being pitched to like that because scouting reports showed that's what he struggled with based on the last time he was seen in the MLB. Now he is getting fed fastball/change-up/splitter and struggling.
So why does he, a young player with less than a seasons worth of MLB ABs, not get a chance to make the adjustment? He's already proven he can make the adjustment on sliders. Unless you think 150 PAs is enough for the book to be out on a guy and he has shown he can't make that adjustment.
150 PAs, to me and most of the baseball world, would be an incredibly short-sighted leash for a team not staring a no-brain improvement right in the face. The Indians are not staring at that right now either.