premise: We need the independence to make sure that the office will not interfere with the military structure whatsoever and that it will act as an ombudsman for people in the military structure, either family members in the military, the military personnel themselves or civilian members of the Canadian Armed Forces who are involved with the military.
hypothesis: They will always have independence.
reason: The statement was arguing why they needed independence, however there is no way to know if they will always have independence. That sort of thing can change as time goes on.