Again, there are perfectly fine and very useful blockchains that do not provide any kind of trustlessness. See corda.net. This insistence that a blockchain cannot be permissioned is not accepted by most people. It's silly to keep insisting a word means some restrictive value of X when a great many people do not use it as such. A FedCoin could be highly centralized and still provide enormous value as a trustworthy, distributed database.