I actually do think Dukehky's comment is relevant, in that a major reason Parker is waiting is to see which team(s) will have the most immediate playing time available. It's at least a decent inference to make as far as why he might push his decision back to right after the deadline.
Unfortunately, I wouldn't blame the NCAA for the sad state of affairs in college basketball as much as I would blame the NBA. The one-and-done rule, which apparently was simply put on the back burner when the last CBA was hammered out, is a scourge of college basketball. If what JWill described - that top recruits care more about preserving draft status than winning at the college level - is accurate, it is about the worst thing college fans could hope for.
Stuff like this makes me miss guys like Singler and Battier.