I've been calling it Disney Studios myself for some time, I guess because I am on vacation at DISNEY WORLD that I never liked calling it MGM.
Also, I noticed when we would speak about our trips to people not into Disney, it was confusing to hear MGM and they would think we were talking about Universal.
So, to me they should have just changed it to Disney Studios, but whatever.
I understand their need to play up the Hollywood factor.
That's why preserving the look of the Chinese Theatre was not a priority, not many outside of Hollywood know what the heck the significance of Grauman's is, so we got a pointy hat instead.
We always called it Disney Studios to friends, otherwise they always ask How it was different from Disney's movie park if we just say MGM or The Studios. Well stick with Disney Studios , just habbit.