The new changes and the restoration job might be a little dodgy, but I think this is something that we have asked for ourselves. It angered me to watch people on forums complain how half-assed the new DVD's were, cause it was their own fault; weeks before the release, people were happily sharing DivX's of all three movies. Lucas would have lost incredible amounts of money had he not released it earlier. Because just a few people were greedy, every single SW fan now has to watch muted lightsabers, blue shirts and sunburned rebel officers. If they had waited, we could have had a much more polished version, but somebody didn't like it that. Because Lucas had to rush it in order to avoid losing money, the quality control was too loose. So I would blame these internet pirates rather than Lucas and Lowry.
Overall, I'm just very grateful that we even have the movies on DVD, but I am also quite glad that I have my old SE VHS' and the ability to download those beautiful LD transfers.