They may try to sue exchanges that let the funds be transferred out, as the addresses where the thieves sent the stolen funds have been published.
There's absolutely no need for a central authority, but as always we need local courts and law can be different in different places where those exchanges are registered.
Screw globalism and screw central authorities.
Having said that, this DeFi stuff is laughable. As if the main use case is to find greater fools or scam people.
Why are you questioning it - IIRC the NYT wrote "feel good" articles about those visionaries several times ...
> It's unethical
You can't know whether it is or isn't. It's quite likely ethical - share with others the opportunity to make money off their WeWork investment. Maybe they'll instead lose money, but he didn't force them to buy it, so what exactly might be unethical about it?