I don't think this makes any difference. 1 million coins or 600k coins, I think it's safe to say that these coins are gone forever. Satoshi himself was very libertarian, I doubt he wanted to be in the position where he himself becomes what he despised. Bitcoin is his brainchild, he deeply cares for Bitcoin, he knows that moving or using these coins would harm it. If he had the self-restraint to not access that wealth at the peak of the price, I'm sure he won't ever access them.