I've seen a lot of conflicting ideas over the years regarding this topic. Which is understandable, certainly, given the complexity of the issues involved.
It seems to me that there are at least two important points that create tension with one another.
The first is the modern tendency to objectify female characters, especially in genre flims and tv shows, with tight and/or revealing outfits for no other reason than to pander to young men and adolescent boys in the audience.
The second is the older mysogynistic tendency of concealing and suppressing female sexuality, partly by literally covering it up with clothes, veils and so on.
With those two things in mind, I think it's easy to see why opinions on the topic might be conflicted.
Anyway, I think this movie made the right choice. WW's outfit felt like a natural extension of the Amazonian warrior culture, and certainly not something that was being forced on her by an oppressive male gaze.