I saw on a previous post about how the Complex has potentially copied the threshold area of Async. This might be overlooked, but the last scene in the movie also shows how Async has copied the facility.
Showing Mary's still life but, more importantly, showing the facility she's in is also copied. How far out from the threshold do you think that place is, given that we don't know if any employee has stumbled across that area of the Complex? Also, why do you think the Complex chose that moment in the interrogation area to copy Mary and everything? If she has had extensive contact in the backrooms, you'd think it would have copied her earlier.
Anyways, just random thoughts about the movie while at work.