One or Two Breathers

The argument that you build up too much moisture without a PCV could also be argued that you draw in too much moisture with a PCV.
No, that argument cannot be made. The moisture accumulation issue comes from the lack of ventilation through the crankcase.

Moisture from the outside does not accumulate because the incoming air becomes heated when it gets inside the engine, and it's relative humidity goes down when this happens, and so any outside moisture does not condense insides the engine. This is not guessing or arguing or postulating; it is simply understanding the way the laws of physics actually work.

Lots of long drives will help drive out moisture in any case. But is you are daily driving and making shorter trips, then the moisture accumulation becomes a real problem with no, or a non-functioning, PCV, or other flow through system.