The main reason for the automatic disarming of the slide when opening the door from the outside, is to prevent the door assist from pushing the door open. It would be dangerous if it did as whoever was opening the door would very likely be pushed back and fall on their arse or down the steps.
The slide will not necessarily deploy as it needs to drop a certain distance to activate. If there are steps or an airbridge at the door the slide pack will just lay there undeployed.
Last edited by KBPsen; 12th April 2013 at 13:00.