Hmm I see your point with Star Wars, but I don't think this is what's happening here. I see no indication that anything has changed other than upgraded quality of older classics, which seems like a good thing.
I learnt a while back that George Lucas allegedly did those edits to prevent his wife from earning her royalties as editor: https://www.reddit.com/r/todayilearned/comments/7g5gfr/til_m...