The door's should drain, unless the drain would be clogged. If the door has been soundproofed or just trash in there.
I wouldn't stress on it to much, but should have it fixed. Probably what happened is that piece was not fixed properly if damaged by the accident or was bent upon repair to the door. Take what I have to say with a grain of salt as I'm not there to see it personally.
Mike


I have a dream, and that is a 69 Boss 302 with Jules Asner in it.
Current - 2002 Chevy Silverado
Former - 98 SVT E0 T-Red 4/4/97 #173 of 6535(so long girl, you'll be missed)