We don’t know as we haven’t tested BuWizz. My assumption would be the BLE protocol used by BuWizz differs from the PU BLE protocol. Just like the SBrick BLE protocol differs from the PU BLE protocol.
This would mean MTC4BT currently doesn’t support BuWizz and we would need to implement a third BLE protocol in MTC4BT, next to the protocols for PU and SBrick.