Here's an excerpt from that interview in Insider:

"Well, CGI is the tool that is used to create effects these days," he responds. "But I think a lot of practical work from that era holds up better. Last year, I went to a 30th anniversary screening of Return of the Jedi and they found a really good 1983 print that had none of the later computer graphics in there [shown at Pixar to celebrate the release of the Making of book--Ed]. It was in really good shape and I was really shocked at the work we did back then--some of it is so much better than a lot of stuff you see today."