A lifetime of extra night sectors each and every bid period till retirement(increasingly likely to be medically) may result in pilots having to comply with their legal responsibilities now that the protection has been lost for the 787 fleet alone.
The one saving grace of the 787 contract is it costs nothing to go sick but allowances. There is no longer a perverse incentive to go to work tired or sick as there is now on big overtime sectors and on the SH award. If you're too tired to operate because you're being worked too hard, you go sick. Simples. Getting the certificate to cover such a situation as a generic "medical condition" is a simple matter.