Not seen the RAF P1 directive, however, not sure about the waivers for wg cdrs and above. It may be age related but I am current in both CCS (A2 and 9mm) and fitness test. Moreover, I am still allowed to make reference to an officer's attitude towards fitness if it is not positive ! I know that wg cdrs and above still deploy, are exposed to the same dangers (relatively speaking) and require good personal admin. It is not just officers though and I won't bore you about the incident where the WO self administered a combopen because his chest pain, sweating and dimming of vision were down to the fact that he was a pie merchant who wasn't fit enough to make the shelter without puffing !
As an aside, from 2005 failure to pass the RN walking test is a black mark and block to better things.