Huntar, your gut feeling is likely to turn to nausea after future ESA listings further restrict pacific salmon and steelhead fishing if Atlantics are introduced.
The consequences of introducing a piscivorous predator into northwest streams could be extreme and unpredictable. There is a finite amount of habitat and food sources available to spawning and juvenile salmon on many rivers. If Atlantics colonize these rivers and compete with native fish there will be reductions in native fish populations. If juvenile Atlantics feed on smaller juvenile Pacific Salmon and steelhead, as well as coastal and sea-run cutthroat, there will be further reductions in native fish populations. Even if the Atlantics don't "win" the competition with native fishes and come to dominate the streams, if they become established they will take resources from and reduce the populations of native fish. If these things happen, what do you the regulatory response will be in light of the endangered species act? They'd shut the affected rivers down, and rightly so.
Believe me, introducing exotics is not a good thing. I'm surprised Plunker though so. Although I don't agree with his wild fish kill opinion his ideas are usually well thought out. He either didn't think this one through or he was just trying to start an argument (which is pretty likely). At the least, a successful introduction of Atlantics will lead to reductions in native fish populations in the affected streams.