He was healthy enough to play and he still had the occasional good game. I'm sure he was hampered, but he still shot terribly. I don't think him being a good NBA shooter is written in stone is all I'm saying.
He had a 4 game stretch where he couldn't make anything. I'm not sure if that's when he was hurt or not, or what was going on. Without that stretch he would have shot 42% from the 3. You could probably do that for a lot of guys, so I'm definitely not saying he's a 42% 3pt shooter, but just goes to show how little it takes to tank your college shooting percentages.
He has had multiple games of 5+ 3's made, which makes me think he could be pretty good. I think his shot looks good, but his FT% maybe is indicating that he might just be average. Although FT% isn't exactly a perfect indicator.
I think he will be good, but would agree it's not a given. I think at worst he's a guy you have to guard on the perimeter.