This is interesting. Even if we already have lots of tokens just for payment options, only a few of them are backed up with real value. Gold is a trusty backup option!
Gold is really a great back-up option, if in case, they really have it and they all have proper docs in hand. It's easy to say that someone have it but if you ask for a certificate, there would be a hundreds of reasons not to show it. Transparency and security are the major missions of this project so I hope they will live up to these missions.