A book that it sounds like she was trying out new writing styles/story style which she was not confident in and which may not have worked out well was tested with a name that was disposable, now that it's linked to her name if it was a bad book then its now linked to her damaging her reputation among readers. It's not just about the amount of money it brings in but what it can cost in the long term to her reputation among her fans.Johnny Novgorod said:"Damages"? She gets a free publicity stunt that boosts her mediocre book's sales and she calls that "damages"?
Not to mention at the end of the day he's her solicitor and she should be able to trust him, he broke that trust (and possibly contract/privacy laws) and thus must now pay the piper regardless of weather it worked out well or not.