We have different definitions of good. If all you are looking at is 15 and 9 then sure... Oshae had a good season. When you look closer, you see 35% shooting including 37% from 2 (!). All of this in 38 minutes, including many 40min games. It was a function of incredible volume. He got a pass (at least from me) because he was a freshman, and the team was severely limited in terms of offensive factors.
However, I do agree his 3pt shooting and ft shooting has regressed this year. It's proven by the %s.