Riffe was planted with a bunch of disease carrying cook agriculture fish that they were not allowed to pollute into Puget Sound.
They thought Riffe was the next best thing.
Huh? Why would you assume they were disease carrying fish?
Because Cooke is in the salmonid disease introduction business.
They have fish farms on every continent on the planet. Costs are much lower in other countries but they fight tooth and nail to keep farms where the Salmon live. Less Salmon in the ocean gets people to buy their inferior product that has been shown to carry constant new versions of disease.