All largely irrelevant, I'm afraid. For one, RAI =/= RAW. It does not say anything about treating passengers as disembarking, and it specifies a situational condition to apply the rule, a condition dependent on it being your movement phase. Of course, more importantly than of that debatable bit, the INAT guys have said that:
"In addition, the models count as having disembarked from a vehicle (and so cannot assault the same turn if the vehicle wasn’t open-topped, for example)"
Emphasis mine. So I can't assault out of a vehicle my enemy destroys during his shooting or assault phases. Big change! Since you can't ever under any circumstance I know of launch an assault during the enemy's shooting or assault phases the whole thing is rendered largely pointless. I learned this when I pointed out to my players this rule, and they quickly and immediately picked up this quirk.
I'm sure it comes up all the time at Adepticon, though.
