AMRN doesn't have the money or time to do it. Big Pharma isn't interested in benign, "organic", and relatively inexpensive long-term solutions to anything. They want expensive Frankenstein solutions, and will work actively to snuff out anything that threatens that model. We've enjoyed that reality personally.
If someone discovered that doing 10 left-handed 10-pound curls a day prevented heart attacks completely, Big Pharma would silence and then kill that person and the idea as quickly as possible.