I too personally liked the change. It followed the continuity of the first three (although the third has yet to be released but you know what I mean
).
Lucas said he changed "little" things in Star Wars: A New Hope and Empire Strikes Back. Did anyone notice anything?
I know that for Empire he was like "yeah we added this guys names during the credits because we forgot to last time". (They forgot to add Ian McDiarmand (how ever you spell the last name) name to the credits for playing Palpatine).