I'm not really arguing the merit, just answering how I'm reading the article.
The systems are airgapped and never exfiltrate information so that shouldn't really be a concern.
Humans are also a potential liability to a classified operation. If you can get the same results with 2 human analysts overseeing/supplementing the work of AI as you would with 2 human analysts overseeing/supplementing 5 junior people, it's worth evaluating. You absolutely should never be blindly trusting an LLM for anything. They're not intelligent. But they can be used as a tool by capable people to increase their effectiveness.