OzzieO - crew still insist on two local nights during disruption. It did not go unnoticed that during the recent disruption at BKK a rerouted jumbo left SIN empty (leaving behind lots of passengers) because the inbound crew from SYD had demanded two local nights.
It certainly didn't go unnoticed. The flight crew were happy to continue to LHR after they'd had the minimum rest. Their rationale being that industrial agreements are there for planning purposes, but when there is disruption outside of BA's control, crews should do whatever is necessary (provided it is legal) to get passengers home.