I think I understand this now. Basically if Mtgox dies, he shouldn't have to take any of the responsibility, but all that fake Mtgox BTC will be with him when it does goes down (unless buyer asked for it to be delivered to their Mtgox account.) Even though it shouldn't matter since it's all gone and he would have delivered it if he had the possibility, there may still be a legal risk to him. :/
Basically he found a way to send Mtgox BTC to verified accounts. I'm not even sure if you can get your Mtgox BTC back if you don't have a verified Mtgox account.
Everyone can send Gox-Btc from one mtgox account to another account ,internally. This is still still working.
Mtgox being insolvent, Josh can instantly send the gox-coin to the respective gox addresses , unless the website goes down.
Yes. I guess it wouldn't matter if Josh had the Mtgox coins or you did if the website goes down. It will technically be worth $0.