We can chuckle about trailers laying on their sides, but the door becoming blocked by falling trees/branches is probably a lot more realistic. There are true emergencies (fire!) and less stressful emergencies... the door lock is broken and I can't get out. Having ANY egress is better than none and I'm glad the roof vent is big enough and made for getting out. The less damage I do to my trailer when I NEED to get out, the better.
Ten Forward - 2014 Escape 5.0 TA
Double Yolk - 1988 16' Scamp Deluxe