No, I have probably forgotten more about college basketball (or basketball, period) than you will ever know.
The thugs are also coming in from high school and going one year (hence the one year rule?). The better players are not worried about JuCo neither are the colleges about their grades (Memphis and Rose, Kentucky and Wall, Cousins).
I realize that there are some schools that are coming up. You must have missed the "for the most part" part of the statement that you used. I used Mizzou as an example. However, Mizzou is not a powerhouse yet. That is still Duke, Big East, UCLA, Kentucky, and the like. And, yes, they still are running the show.