Looks like the level of formality is a bit different in Alaska. I took a Celebrity cruise in Northern Europe a few years back and on the formal/ semi-formal nights they wouldn't let the men in the main dining room without a jacket and tie- no if, ands or buts allowed.
I had rented a tux but I didn't intend to wear it that much - there were 7 formal / semi-formal nights on the 14 day cruise.
I'm still trying to finagle a way to make this cruise but it still looks less than promising.
