Earlier quoted context omitted.
It's not banking laws at all, it is the way they set up the association, I presume precisely to avoid fears like this. I think there are not clear laws yet about this kind of backed stablecoins. However, their reserve will be 100% , which is way more than any bank.
I feel like this is E-gold 2.0 maybe 3.0 with BTC being 2.0 https://en.wikipedia.org/wiki/E-gold
> the assets in the Libra Reserve will be held by a geographically distributed network of custodians with investment-grade credit rating to provide both security and decentralization of the assets.
And BTC is not backed by anything, it has intrinsic value now so it's wrong to call it a scam.