Complete opposite. He left because he wanted to play three. Ironically, when he got to Oklahoma, they had a coaching change and the new coach made him play four there as well. The word was that he wanted to transfer back Murphy Holloway style and MSU told him it couldn't be done.
In any event, I don't see how anyone can assert that playing time wasn't at least a major factor; in fact, in saying he was stuck playing behind Kodi and Ravern, you seem to be saying that, but then conclude the opposite.
I think he'll have the same problem as Lawrence Roberts. 6-9 four men have a tough road to the NBA.