That's exactly the point. But that's not only the case with George Lucas. The better the CGI, the worse the films, at least that's my impression. Nowadays everyone can do exactly what he or she wants. That wasn't the case 20 years ago. Compromise makes the better films, simply because less is more.
Case in point: Jaws
is a much better movie than it might have been because they couldn't get their mechanical shark to work right. Nowadays you just Sharknado