That's just an absurd statement on every level. Calipari thinks the rule is stupid and has said so publicly but he can't do anything but work with it instead of against it. I hate to break it to you but Tubby Smith, Coach K, John Calipari, Roy Williams, etc aren't getting paid millions of millions of dollars to crank out doctors, lawyers and engineers. They're getting paid to win games. Maybe that's a cynical viewpoint but it is a valid one.
People cite the baseball rule all the time. What they fail to mention is that in probably 75% of the cases kids forgo the draft and commit to college not because they value education or their experience of playing college baseball but because they don't like their draft position or the money being offered. And the college baseball coaches loathe the rule themselves. They lose tons of kids every year at the last minute because they get an 11th hourd deal done and go off into the farm system with their signing bonus.
You can't have your cake and eat it too. If you want kids to value the college experience, graduate and stick around you're going to see a game akin to Division II or Division III. What people need to wrap their heads around is that kids don't pick up a basketball and go "Man, I hope I get good enough so I can go to Minnesota or Purdue and get a degree in Civil Engineering". They grow up wanting to be LeBron or Kobe or KG or Jordan or Derrick Rose and play in the NBA. I know NAIA kids that even though they're playing small time college basketball still harbor aspirations of playing in the NBA even though the chances of them ever making it are almost zero.
It's not just an easy question to look at and say "This is automatically wrong. These kids should be forced to do this or that because it makes my team and the game better" Hell, I wish it did for purely selfish reasons. But that's not the way it works nor should it.