After Squad 13's failed attempt at a wedding, only the bride and groom are sent for re-indoctrination wiping out the relevant memories. But why stop there? Why didn't APE wipe the memory of every single member?
- Everyone supported the wedding, and it probably served as a precedent to more relationships.
- Obviously this makes the squad doubt Papa's benevolence, which compromises APE's plans.
- Naturally everyone will try to restore the lost memories, which more or less works as they easily convince them that their relationship was real.
My only guess is that if they wipe everyone's memories they end up with a team full of strangers who won't perform as well as before, although that doesn't seem to be explicitly mentioned.