The fundamental problem is probably with the possibility of fork - if it is decentralized then everyone can fork it if he disagrees with the way it works.

But maybe there are some good in-between solutions, less dogmatic, more pragmatic.

Forking is not a problem. It's users voting with their feet.

The possibility of forking is a necessary deterrent in cryptonetwork governance.

If the maintainers of a network become compromised or get coopted by special interests, the collective owners of the network(the holders of the cryptocurrency) have the right to exit.

The right to exit is a necessary part of governance.

You cannot have an binding agreement between everybody if anybody can get out at any time. My thesis is that managing money supply requires such an agreement. Of course you can have unmanaged money - historically we always had that - with gold standard and shells. But it is probably less efficient - because it means you cannot adjust money supply to the state of economy.