Lucas has not once altered his opinion on the Jedi. Back in the 1980s, 2000s, and nowadays, he still says the Jedi were right and still echoes their philosophy as if it were his own.
I’m not so sure that his perception has never changed. There was no mention in the OT of a need for Luke to leave behind his attachments. Obi-Wan cautions him to not let the Emperor use those attachments against him, but that’s not the same thing. Also, Lucas was able to give the greenlight on plot points in the EU, so he must have been aware of and greenlit the Luke-Mara Jade romance and marriage and the New Jedi Order doctrine changes. Of course, he later said he disagreed with the idea of Luke getting married, but that was later.