Any strike by Servisair is playing right into their hands and giving them a hands on trial run.
That would be a good idea however the company have to actually PUT the bag into the hold - the passengers just carry it to the steps of the aircraft. Also,
AFAIK, Servisair provide their stairs for the rear, loading and unloading of BOB products, dispatchers and also push back.
If this is the case then the plane probably won't be going anywhere!