The dei 530T does vent, but its not the setup your looking for. It vents with a touch of the remote, not automatically.
The reason for the windows dropping down prior to opening the door is so it doesn't yank out the top window seal it's embedded in. The windows are sealed by the sides and a top seal. After the alarm is turned on it moves the window deeper into the top sealing, something you wouldn't be able to do after you close the door. All roadsters now have this.
What I like about the 530T is its ability to close the windows when the alarms is triggered.