I've designed doors for production vehicles, and generally all doors can get water in them. That's why there is a plastic sheet barrier on the door inner. Internally in a door, there's 2 zones, wet and dry. All doors will have drain holes. Drain holes are punched holes for metal doors, and these aren't missed during the manufacturing because they are part of tooling. Yet doors like the Viper, SMC and plastic doors, the holes are made manually to trim lines, and another problem is that the plastic or SMC outer is bonded on and the excess adhesive can clog the drain holes.
So take a look under the door inside the lip and look for holes, see if they are clogged or are missing. You can always drill them in if you're up to doing it yourself or have the dealer or body shop do it for you. 1/4" diameter should be fine, 3 or 4 of them spaced out from front to back to be sure the water will drain out of the door to accommodate whatever incline / decline the car is parked on.
If somebody can take some pics of the underside of their door and Post them, even better to evaluate what they did in production.
Cheers,
Mike