Part 4 is only necessary because there isn't good infrastructure for working directly in crypto. I can see a future where say a food vendor could take the crypto tokens directly so that you don't have to convert to USD, and a future where the rent is paid in tokens.

And you're right there is a danger about unwinding financial regulation, some of which is there for good reason. Which is why I think it only works because the LLC is still subject to US law.