Snotty weather can indeed be problem for flying and other forms of navigation on the north coast of the Gulf of Alaska. Know that so well since I was born and raised there and flew commercially there for 12 years. Certainly took my share of flak from passengers who wanted to go but I deemed the weather unsafe instead they figured their judgment was better than mine. Sometimes they would go fly with Brand X. Sometimes Brand X would end up terminating their flight on the side of a mountain. But, another story another time.
What concerns me more is that you indicated that after not being able to spend any time at Hubbard at the head of Yakutat Bay, Silver Seas instead jogged their way to Seward, killing time. I wonder why Silver Seas didn't have a contingency plan where they took you into Prince William Sound, and perhaps not having enough time to go up into College Fiord, there is certainly a lot to see in and around the Sound instead of killing time way out in the Gulf. After all, Resurrection Bay, on which Seward is located is immediately west of the Sound so it shouldn't have been a big deal to enter the Sound. Weather wasn't all that bad then either in the Sound, I know because I was close by.