I think going after the unscrupulous and wealthy insurance companies would cause all kinds of problems for Amarin and the company knows this. Even though insurance companies surely don't play fair, they are pivotal for sales and I imagine Amarin works hard to try to have a good relationship with most of them, if only to get good placement on formularies. Health Net was a relatively small fish in a sea with lots of whales. So Amarin could send a message without (hopefully) poisoning its relationships with big players in the insurance industry.