A blockchain in this context is much worse than a 3rd party because there's nobody to sign a contract, arrest, subpoena, or bring a lawsuit against. "It's math

A blockchain in this context is much worse than a 3rd party because there's nobody to sign a contract, arrest, subpoena, or bring a lawsuit against. "It's math, bro" isn't actually comforting if the contents of the distributed database are actually in question, perhaps because of mistakes, shenanigans or misbehavior. No sane risk assessment of "our company depends on this being correct and consistent" is going to sign up for this.