You just proved OP's point. Cryptocurrency which isn't seriously decentralized is pretty pointless - you might as well just go back Wells Fargo and an Oracle DB.
Decentralization is one of the defining traits of a cryptocurrency. It's like saying a car is an airplane, but without wings. It just doesn't make sense.
Hell even bitcoin doesn't have a great notion of verifability (verify what? No double spending? Lets hope your opponent doesn't control 33% of the hash power.). Central-db systems can issue recipts (like humans have been doing for thousands of years). Centralized cyrptocurrencies basically offer the same protection at best and much less at worse.