It is always extremely difficult to introduce or let out a character in the very middle of a mission, even more so when a good part of the mission premise is a race against time in which the life of the whole crew relies on working together.
Just for that reason, how this SIM solves that conundrum, is worth to be in appreciations, since it does it in an extremely intelligent and elegant manner, becoming a wonderful prelude for the next part of the mission. If we add to that the emotional significance of the scene and how much in character both officers are, conveying the gravity of the situation and the bonds that link them, what we have is a treasure.
Thank you very much for this exhibition of good work and great writing @Geoffrey Teller and @Addison MacKenzie
(and, again, you'll be DEEPLY missed in the Thor, BOSS!)