Exactly. Providing write-scalability is big deal, don't get me wrong, and this project looks interesting. The biggest misconception folks have about rqlite is that it increases SQLite write performance, when it's about providing fault-tolerance and reliability.
So projects like mvsqlite are solving a real need. I just disagree with some of its definitions.
But is it Byzantine Fault Tolerant? From what I understand, RAFT is not. Paxos-based consensus can be made to be.