>>11828232 (lb)
>Esper was Terminated Nov 9
If they wanted the raid to be undiscovered it may have been the best option to leave Esper where he is, but not tell him.
Any moves beforehand could have tipped the server farm off or raised the alarm level. Also, it's possible that good guys could pick up comms bitching to Esper about not tipping them off, etc., after the fact.