I like that Yelena was the shot Kate didn't take.
Kate had her lined up (she even closed one eye as "code" to the viewer that this was a serious shot). If they are setting up a Kate/Yelena pairing I'm all for it.
It's possible that Kate has been swapped into Clint's role in that story (if that story is even being adapted--have we heard of any casting of the sweatpants bros?). Kate is holding Pizza Dog's lease so maybe she rescues him?