For this particular use case all the possible benefits from integrity consensus can be obtained while still having a centralized authority. The grandparent post

For this particular use case all the possible benefits from integrity consensus can be obtained while still having a centralized authority. The grandparent post notes that it would be better if "several nodes have to agree for the chain to advance.", and that's true, but there's no benefit for it to be distributed, the best and most efficient way to implement that is to simply have like three nodes in a single room 'voting' in a 2-out-of-3 manner, and there is no need to bring in extra complexity required to do the same thing without centralized authority.