Maybe Big guys like Shaq who were in there just to rebound and muscle the opponents around. Free throws should be a vital part in any player's skill set. If you can't make 7(or at least 6) out of 10 Free throws, you shouldn't be playing professional basketball.
I don't understand how you can shoot(or try to shoot) the 3 ball multiple times in a game and not be able to make a freaking foul shot.
As far as I know, Shaq never attempted a 3.