Consider: everybody had to get by sniffer ValJar years ago to secure a seat at the fundamental transformation table. Brennan would have checked every one of her boxes. No way would he let Gina live after learning what she was casing in London..then he blows sunshine up her @ss the other day, when logically she’d have been worm food long ago if he knew.
Well, that makes the assumption though that these people were competent and running an effective, competent operation. We know from the details already exposed, and the lack of effectiveness, that this was not a competent operation run by competent operatives. It was a collection of arrogant hacks...with arrogance being their primary characteristic.
They would likely brush off a mere Station Chief would be viewed as a controlled employee with the bureaucracy, not worthy of their high level concerns. They wouldn’t give her a second thought. And that may be much to their chagrin now.