Marston's Wonder Woman was based on a "slightly disturbed sexuality?" Has he read any comic books in the last 40 years? I have in mind recent scans of John Byrne and Gerry Conway, but further examples aren't hard to find.
"these extremely weird dark elements of Wonder Woman haven't been adequately dealt with."
In Marston's stories, bondage as practiced by Wonder Woman and the Amazons is playful and done with the goal of making everyone involved happier, more loving and better people. It's anything but dark.
I'm picturing Woody Allen saying "Mr. Morrison, meet Dr. Marston. He has something to say to you." "You know nothing about my work."