Frankly, as long as we are only complaining here, we are basically sustaining these procedures.
There is a thing called sick fatigued that mitigates it completely legally. The more they are squeezed, the less repercussions are possible. Especially skippers bear a huge responsibility to use this feature.
The most potent utilisation is down the line, but as long as we see guys doing i.e. A ORD with 3 men back, we will have the Napoleons of the Animal Farm pushing us.
Wake up to our responsibilities towards passengers, fellow crew and ourselves, or merly keep on whincing here.