So your one example from his freshman season is a game in which he played 23 minutes and had 4 points and 9 rebounds is evidence that he's never had that production while at Syracuse?
Aside from nearly going blind 2 years ago and making a comeback last season, 30 seconds of research showed me that Chukwu had 14 and 9 vs. Wake Forest, and then had 6 & 10 vs. TCU in the NCAA Tournament last year. Seems more "productive" than the Butler game in 2015. I'm not saying Chukwu is Anthony Davis, but your argument is lazy and ill-informed.
Chukwu has never been offensively talented. He was recruited out of HS by PC, UConn, and SU, simply because he is 7'2 and can block shots and get rebounds. I expect him to be better this season after basically missing 2 years with the transfer and serious (almost career-ending) eye injury.