Sigh. I know. And yes, there most certainly is a HUGE difference between water splashing down inside the door (i.e. leaving window open in storm) and a flood rising up and filling the entire door with water. (and pooling up inside the window motors, bottom of the window track, getting all of the pivots wet for the window, soaking any sound deadening, etc etc etc.) No one is saying that door drains don't exist, or won't drain *most* of the water out of the door.
Seriously guys, if you haven't actually seen what a flood does to a car please stop giving fleabag-type input (i.e. 'guessing' about what happens or basing it off of crap you read on forums)
Damn, you still don't get it, because you STILL don't understand door drains and what they're there for, apparently.
Water goes down inside the door EVERY time the car gets wet. EVERY TIME. With the window UP. THAT is what the door drains are for. The window doesn't have to be down....if it is and it rains, you have more problems than water inside the door.
Yes, water going inside the door during the rain and getting trapped inside the door because the drains are plugged up is EXACTLY the same as it getting flooded. Water in the door is water in the door. If the components in the door are submerged, they're submerged.
As I said before, you simply are not understanding what I'm talking about....you seem to be referring to water inside the door PANEL, not inside the DOOR ITSELF. Inside the panel is irrelevant to electrical damage. Not likely there's anything mounted low enough in the panel to have gotten wet. A speaker, maybe, or an entry light...that's about it. None of the switches should be at risk.
Yes, you DID say that "some" cars had door drains. No, ALL cars have them. They also have an inner splash shield to prevent water from splashing into the door panel, running out from under it and getting into the car. This is likely how the water got into the car...those shields aren't designed to hold back much weight...they are only attached with some low-strength adhesive.
And YES, every drop of water runs or evaporated out of the OP's door by the next day, if the car sat in the sun much at all. There's nowhere in there for it to pool up and not drain out.
That's why the components inside the door are designed to get wet. If you submerged them and left them for a week, maybe that would be a different story....and maybe not.
But if it rains all night, they stay wet all night. No difference.
I can tell you I've seen many, many cars with plugged door drains that just held water all the time, and everything still worked even WEEKS and MONTHS later. It's not that big a deal.
I'd be far more worried about what's under the carpet.....some manufacturers put modules under the carpet. If yours is one of them, THAT might be a real problem.
Re: the "Flea-bagging": Look, this is what I do for a living. I've most likely seen more water intrusion and damage than everyone (not just about everyone, EVERYONE) here put together, (including all the mechanics) unless you happen to own a similar business. I know exactly what I'm talking about. I typically just offer advice when I have some, and don't when I don't....but if you're going to start hurling around insults like "Flea-bagging", which is pretty much what you yourself are doing, you better make sure they're intended for people who are really "Flea-bagging", and don't know their subject matter.