The idea is to stay with the vessel which is thoroughly computer controlled on every major system.

Losing the primary radio sets (3), RADAR, electronic navigation systems & computers are a minor issue.

Whether we would lose the generators, main switch board, electrical motors on critical subsystems, and onboard control circuits/ modules (engines and steering) would be the only reason to secure the vessel and disembark.

The zincs may very well protect everything inside that isn't connected to an external antenna....