Most of the smaller crossovers are as simple as characters popping from one show to the other for a conversation, but the March 19 episode of Station 19 killed off a character whose death wasn’t actually explained until Grey’s Anatomy, and that’s messed up in my book.
Not a “bear attack” level of messed up, but messed up!
Station 19 and Grey’s Anatomy have been crossing over more and more in the 2019-2020 TV season, to the point that some Grey’s stories were hard to fully appreciate for viewers who aren’t in the habit of watching Station 19 the hour before.