Those Skamania fish are (were?) some badass hatchery brats. My first steelhead was a Skamania hatchery fish of about 9 pounds on the Kalama in June 1999, and I'll never forget it. Came all the way to my feet silently before it figured out it was hooked, and then all hell broke loose. Screaming run across and up the Beginner's Hole led into a 20-foot tailwalk, followed by a massive back flip, and then a whole lot more pulling before it finally surrendered.
Hatchery steelhead don't screw up wild genetics (especially not THOSE hatchery steelhead). Unfortunately, they cost a lot to produce (many years ago, the estimate was well north of $1,000 to return a single adult, and it's probably 5x that now), and in the current budget environment, they just don't pencil out anymore. Super sad, though. It means the effective end of summer steelhead fishing in the Kalama, Washougal, and several others rivers. The wild fish their genes came from are all but extinct.