We’ve heard stories of AMs trying to babysit closed Section 12 stations with CSAs, or remove staff from them entirely. Swift intervention by local and Tier 2 reps ensured a plan to babysit Bakerloo Line stations with CSAs was quashed.
If trains are running, even closed stations need properly-licensed staff (i.e., CSS or above). They're needed to deal with any incidents, and book on contractors. This must be non-negotiable.