Remember people,
Wonder Woman the title has an editor: it is listed on the credits page of every issue. But I also have little clue how DC's office and editing culture looks, and I guess that goes for most of the people here—a lot of the rumours around it is probably out of date or given by someone with an axe to grind.
Anyway, we have had similar threads earlier:
Is Wonder Woman Hard To Write (2014 thread);
Wonder Woman hard to write? (2018 thread)
That said, I think a huge part of the problems were hinted at by
Christopher Priest (but remember that that one is from near twenty years ago): DC does not want to rock the boat with Wonder Woman (
i.e. threaten her merchandising potential), but as created by Marston Wonder Woman has a strong political core, and the more you choose to examine her construction, the more political and radical she gets. Thus writers bounce away from engaging those aspects, or are told to back away by their editors.
And the culture of comics writing has become dominated by middle aged heterosexual men, who should be the last people to write her, so those writers who gets the chance to do something real with the character (like Morrison) make an absolute hash of it.
However, I have decent hope for G Willow Wilson. She still has to deal with working out the continuity snarls, but at least we finally have a great female writer with a long-term vision for the character that I believe gets her radical nature.