Edit: I might even have been excited about a new version of Mulan if not for the controversies surrounding it. It is a shame because it was one of my favourites as a child.
The original Mulan legend is good material as is the original movie. If the new movie had been any good we'd likely all be happy for it.
A Star Was Born has been re-made 4 times. The most recent is the highest rated. Pride and Prejudice has been made several times. I personally really enjoyed the mid 90s version. Mutiny on Bounty has been re-made more than once. I liked the 60s version over the 40s version. I liked the 2005 King Kong (and the 1933 King Kong)
There's nothing wrong with remaking. It's just disappointing when it's a bad remake.
I guess for me it's not so much the remaking even as Disney remaking it's own properties. I like the BBC pride and prejudice more than the more recent remake, but perhaps that's just nostalgia.
I haven't watched it yet, but I'm told the most recent Little Women is a better version.
The biggest problem really is Mulan being a Mary Sue.
Watch one of those instead!
edit: grammar