Patty did significant work on the script along with Geoff. Neither of them actually have a "screenplay by" credit because of how the WGA works, but both of them worked on the script together after Allan Heinberg turned in his work.
I'm also not entirely sure if you understand what a Director does if you think there aren't any inspired directorial choices in the film. There are countless moments that I'd consider "inspired directorial choices" in the film. Everything pertaining to the No Man's Land sequence, Steve and Diana dancing in the village, casting Chris Pine as Steve, the design of Theymescira and the Amazons, choosing to portray Diana as a fish out of water, etc, etc.