I echo Sinktips remarks.
It will probably be OK for some of the fish but these are not sacremento steelhead we are talking about. These are some of the biggest, baddest steelhead on the planet. 15+ pound fish are very common with 20 pounders a real possibility. A 9wt stick is over gunned on a majority of steelhead water but the Skeena aint one of them.