I think this has to do with the foul shooting or something. But 47 is pretty decent. That's still a near perfect training. I remember the percentages were less hard than we expected so I think more than 95% training.
Personally I can live with that. But then again in the last few seasons I usually train 2 players a 1 position or at the moment 4 players on 2-position. I like it better for my match performance.
Crunchy! If you eat fast enough