The impacts and the tool are real enough. What disappoints and strongly irritates me is WDFW's unwillingness to advocate or work on behalf of freshwater recreational angling in anadromous waters. Salmon fishing, commercial and sport, in marine waters unfavorably impacts weak stocks of Chinook salmon, like the Stilly. What is going unacknowledged is that closing the Stilly to recreational trout and steelhead angling cannot, and will not, save Stillaguamish Chinook from extinction. The only action so far successful in preventing the extinction of Stilly Chinook has been the fish culture efforts of the Stillaguamish Tribe since 1978, and more recently joined by WDFW. These efforts should continue, IMO, until the Stilly watershed recovers sufficiently to produce natural origin Chinook. That may take 50 years, or more likely, 100 years. Meanwhile, WDFW should allow recreational angling for Stilly trout and steelhead, as warranted by the respective stock status.
That's not how it works. Note that if WDFW tells the Stilly or any other tribe how to manage its fisheries, the tribes without hesitation tell WDFW to "go pound sand." However, when one or more of the treaty tribes tells WDFW how to manage non-treaty recreational fishing, WDFW does not respond in kind. Instead, when the chairman of the Stillaguamish Tribe tells WDFW how to manage recreational fishing, it like saying "frog," and WDFW Director Kelly Susewind responds by saying, "How high?" So the Stilly, and any other number of PS rivers is closed to recreational fishing.
As for a few fly fishers screwing things up, that story is apparently real. Maybe it was 2021, but I think it was more recent, like 2022. Apparently 3 "fly fishers" spent a weekend on the NF Stilly and handled something like 17 Chinook, posting their exploit on social media. This was a year when the "allowable ESA take" was something like 15 Chinook. Recreational fishing was promptly closed.
I'd say that it's impossible to connect with 17 Chinook on fly tackle over a couple of days unless the anglers in question were deliberately targeting those Chinook. And how they could not know that Chinook conservation was the very reason for the restrictive season in the first place boggles my mind. I fished the Stilly regularly in the 70s and into the 80s and hooked less than a half dozen Chinook in all that time. It's not at all hard to avoid them.