It wouldn't surprise me in the least that Lucas probably hates SW cuz it's all he'll be remembered for. He's probably really freaked out by how much many fans are into it. Pretty sad actually. I would be really, really jazzed if people were that into something that I created.
It kind of reminds me of how the Seattle grunge bands handled success back in the early 90s. Many of them just ran away from the spotlight. Pearl Jam refused to make any music videos and that was practically inviting death, especially in the video age of music. Once the steam ran out on that whole genre of music, PJ's popularity tanked, partly due to that lack of videos playing on MTV. I could interpret that as the band wanting to reduce their success somewhat, but it doesn't make too much sense really.
The only person who can answer that is Lucas.......but he's made so much money off of SW so why would he feel that way......well....since when does anything Lucas does make sense anymore, right?