Follow up: I got a call from Keystone to answer my challenge that their design doesn't meet the standard. (I might have made that challenge on BBB yesterday).
By her explanation, they are technically meeting the standard by designating the sleeping area as attached to the living area and unobstructed to the main exit. So I guess I at least feel better knowing that they've done the absolute minimum they could do.
Since I've come this far, I might as well try to talk to somebody over at NFPA and confirm their interpretation.
