If deemed suitable yet strictly within commander's authority and responsibility, it is advisable that (observing any applicable limitations and under favourable circumstances) pilots do promote hand-flying as a means of self proficiency excercise and basic airmanship keeping
Could be reduced to:
In the interests of pilot proficiency, pilots are encouraged to hand-fly aircraft in accordance with normal aviation practices.
Normal aviation practices could mean your SOPs or failing that, something that could be defended using common sense (a minefield of subjective arguement).