There was a question on the building code forum that got some conversation. Can you pull in Romex before the building is completely dried in? Contractors seemed to say maybe or it was OK, most of the inspectors just said no.
It sounds like a classic damp location to me. Maybe if they could find NM-c but that seems to be a ghost product. The manufacturer sites I looked at send you to UF when you search on NM-c
I don't have much of a problem. Heck, nearly every job seems to have 'complete' delayed by a window here and a door there. A little rain won't bother the Romex. Period. Just think of all the other 'indoor' materials that are OK for temporary, in the weather, on-site exposure (OSB, etc).
More of a concern is theft and vandalism; that's the real reason most EC's wait until the site can be 'secured.'
Thermal insulation is another matter. I suspect that most places schedule the 'rough' wiring just before they complete the 'dry in;' they want the sparkies out of the insulator's way, and the sparkies prefer to not have to work around piles of drywall.
This was posed as a multi story commercial building. The reference was because of the allowance of Romex above 3 floors. They were asking about starting the wiring on lower floors before the building was topped out and dried in.
Out my way, the AHJ still won't permit Romex beyond 3 floors.
Chicago is paranoid about fires -- hence EMT forever...
California is paranoid about earthquakes -- hence MC is pushed where the NEC would settle for Romex.
MC does have one overriding advantage in commercial construction: it can tolerate structures still open to the elements. That can make it, ultimately, the cheapest way to go: the time to completion can be drastically shortened.
In my entire career, I only had one job where the boss wanted to transition from MC to Romex. It was a horrific mistake on his part: the Romex space was too small. Just transitioning wasted whatever materials savings he thought might be had.
Ultimately, he made enough mistakes -- on enough jobs -- to take himself out of the game. His biggest mistake was alienating his foremen while sucking up to his apprentices.
This is a tick seen all too often in the trades: the boss can't leave his own foreman's cap behind -- and treats his (foreman) subordinates like they're still his rivals for promotion -- even though he owns the whole firm!
(Mentally, he was trapped: 'competing' with the design solutions and management grace of his own top men. Doing so, he failed to function as the top manager, top salesman.)