The Season 3 finale was originally intended to be part of a Station 19/Grey’s Anatomy crossover, and had to be reworked when it became clear that Grey’s would be one of the many shows that had to stop production early.
Surprises are definitely in store if Station 19 is subverting expectations, although any of us who have been expecting complications are on the money.
Her reaction to her reunion with her aunt and then mom wasn’t exactly overjoyed, but she had also been through a lot recently, and didn’t have much time to process before the end of the finale.