Lol the implication was that Calvin controls the grand majority of nodes. Of course it's easy to broadcast changes to SV, just call Centralized Calvin. https://sv.coin.dance/nodes
Poolin has been mining BSV for weeks now also based on your link.
The set of rules is set. That is decentralized. Decentralization refers to the rules. Remember that Craig and Calvin were majority miners keeping BCH alive at one point too