I think risk is associated with stores of value. "I rob banks because that's where the money is." So we move the stores of value from banks to blockchain exchanges and hot wallets, and the risk moves accordingly. Now, instead of the risk being borne by organizations with decades or centuries of experience mitigating it, backed by the Fed, it's borne by people who barely understand the wallet software they downloaded, and Magic: The Gathering card traders who aren't as smart as they thought they were, and people who are absolutely definitely sure that smart contra--oops, let's just "fix" that.

So what you describe as centralized stores of trust stifling innovation can also be described as centralized stores of risk mitigating loss. And I think that's pretty much what we've seen so far.