This was clarified by Ed Sternstein. The LCA are not the enforcers of the lanyard policy. Enforcement is a chief pilot responsibility, and if they have decided not to enforce it, then the LCA are not going to either.

The LCA are expected to wear their Flight Standards lanyards when in a flight standards role. This can be interpreted whenever on duty.

His bottom line was that the LCA need to remain apolitical (for the marines, that means don't take either side) when flying the line.