I'm not sure there's a right or wrong in this argument. I remember Rak as a frosh and thinking 'whoa, this kid has some really intriguing skills for an SU big -- we don't often see a kid with hands, quick hops and some semblence of an idea on a jump shot.' Now obviously he was raw, but the tools were there.
My feeling is that they waited 2.5 years for Rak to really want this, then he earned trust the second half of last season and coming back as really the only proven entity on this roster (G is OK, but I doubt anyone really knows what to think of him; Cooney is fine but had a huge roller coaster of a year), he is bound to get more touches.
The good news is whatever happened the past three years, if this team is focused on at least getting Rak involved to some degree each game, this team benefits significantly.