After setting a vague direction, everything relies on intuition.
The goal is to ensure they don't face memory extraction situations. The Misty City World has become like this, and no matter how foolish the Proxy Agents are, they should have thought of the Boundary Breakers.
During phase one, there was no abnormal sign in the Misty City. It was fine for them to have a clear target and it even helped in investigating intelligence.
Now there's no need for intelligence anymore, so naturally, they must focus on confidentiality issues.
While preventing leaks, they can continue to fulfill their original roles. As for personnel recovery, it's not within the headquarters' considerations.
The balance within the Misty City World has been removed, and Dusk connected to the Misty City World has also been incorporated into it. If they choose to 'return' at this moment, they'll certainly leave traces captured by the local Dusk.