Hawaii is one of the most (the most?) Democratic states in the union. It stands to reason that you should thus try to get the most liberal Senator possible. Why waste Hawaii on some moderate hero like Hanabusa? It's not complicated. This is even aside from the seniority arguments.
Hanabusa isn't a moderate hero.
I'm hawkish, her too. I'm "moderate" socially, like her.
I really can't stand Schatz, too "left libertarian".
She's not a moderate hero... but you're advocating for her because her opponent is too far to the left and because she's hawkish and running as a moderate.