I wouldn't put too much credence in your team FT rating because your "team" isn't taking FTs, individual guys are. Taking a look at the guys on your team who shoot the most FTs, your top guy is a D+ FT shooter. He's followed by C+, C-, and C shooters in terms of FT attempts. Opp and Moralez are both sub-60% FT shooters and in the games you shoot poorly from the FT line, those two guys are shooting a good portion of your FTs.