Dust on a shelf edge is the visible measure
In a store of sealed cartons very little is generated internally. What accumulates is airborne dust settling on horizontal surfaces, and the surfaces people look at are shelf edges, the tops of the highest reachable cartons and the frame rails. Those are the places that tell a visiting auditor or manager whether the room is maintained, and they take very little time to do properly.
Concentrating the routine attendance there is a sensible allocation. The floor and gangways matter for safety and access, the shelf edges matter for appearance and for the impression the room gives, and everything else can sit on a longer cycle. Naming that priority in the scope means the short attendance is spent on the things that are actually noticed. Anything more elaborate on a room like this spends money where nobody is looking.
