They need to sell, period. The longer they wait, the less the value the company becomes. Branded generic is a strategy, but Amarin at its current scale can't pull it off. Whoever is advising JT on this should be fired.
If you're punched by a 800lb gorilla, the way to fight back is to bring in a 2000lb gorilla friend to punch back. A BP can play a similar "dirty" game as what Amazon did to diaper.com.
When diaper.com was hot in 2007-8, Amazon wanted to acquire it but got a no. Amazon spent over $100 millions to subsidize the diaper products on its platform to make their prices just slighter lower than those of the same products on diaper.com, and essentially diminished diaper.com's revenue to the extent that it has to sell itself to Amazon with a much lower valuation.
I believe it's possible for a BP to play a similar game by using coupon or so to lower the branded vascepa price to be on par or slight lower than generic to essentially reduce or wipe out generic's market. It will take months or one or two years to deter generics. Since BP has statin to leverage, it can leverage its existing team to promote and sell both statin and vascepa, hence the cost can be mitigated through sales increase on statin. Amarin by itself can't do it.