They were both dicks. But the author makes it sound like despite her being an insufferable diva with some serious issues, she's a pretty good actress at the heart of it. It sounds like Schrader refused to let what was a good script (theoretically) be fixed in the edits, for whatever ridiculous reason.
Honestly, reading about it made me really want to see work with Lindsay Lohan in it.. if it's with a good director and such. It sounds like she still has potential, somewhere.