That's a small sample size, too, and has to be taken with a massive grain of salt. But the second half of this season was a bit more in line with what we saw of him in the prior to seasons at LSU - though, looking more closely there, he didn't have a ton of shots in either year.
Overall, his career eFG% is .426... a bit higher than the .399 he had this season, but still not great.
Qualitatively, he really did seem like he was overthinking things in the first half of the season, though - pressing on offense and not sure where to be on defense. Those issues settled a bit toward the end of the year, so my hope is that he comes into next season in a better place.
Then again, we thought a healthy McConnell was going to come in strong this season, and he started 5/30 from the field, so ymmv.