They all sit in Zurich, they all are friends who migrated there from California to launch the "Blockchain", it's as decentralized as the pissoirs in a public toilette
They literally stop and run the chain coordinated for maintenance!? Frontrunning ain't even a problem for them, because the whole chain is frontrunning all the time and no funds are safe.
It's a decentralized data system, but it's not what I understand of a Blockchain - way too close to a classic Cloud Database.