Data consistency is an aspiration which we achieve by many means, including pragmatic tolerance for inconsistency, when consistency is not possible and alternat

Data consistency is an aspiration which we achieve by many means, including pragmatic tolerance for inconsistency, when consistency is not possible and alternate mechanisms for handling it. Those mechanisms are almost always less efficient than consistency. So to say consistency is "overrated" is nonsense. It's not always 100% applicable, but this comes at a cost.