Not a fan of the BUSS, find it too sensitive, far prefer to set an attitude and power.
With all three ADRs off the Flt Ctls are in alternate law. There is no reason for the aircraft to be any more sensitive than it is supposed to be. Now in A350 Airbus has come out with alternate speed calculation and backup speed. They have quadruple ADR redundancy( B737MAX has zero) and alternate speed calculation using AOA, load factor and weight which is fed into the lift equation to get back up speed which is compared with ADR speed. If there's a discrepancy between ADR speed the system will generate a warning and automatically change to back up speed. In future A 320 and A330 will have option of this. So with UAS all that apilot does is say thank you and ask for a coffee.