There is a difference between a parabolic reflector and any other reflector. Reflectors that concentrate energy make the damaging effects more intense.
It is difficult to find an analogy -- it is as if the LRAD operator has thrown a punch and the reflector turns that punch into the stab of a rapier. If and only if the reflector is properly aligned will the redirected-and-concentrated beam have the reflector-bearer's desired effect. If not, someone else may get harmed. The reflector-bearer must accept responsibility for the change in consequence between the punch and the rapier.
There is a third option -- one can readily design reflectors that disperse the energy or generically attempt to reflect it upward. Those are the tools of true pacifists.
It is difficult to find an analogy -- it is as if the LRAD operator has thrown a punch and the reflector turns that punch into the stab of a rapier. If and only if the reflector is properly aligned will the redirected-and-concentrated beam have the reflector-bearer's desired effect. If not, someone else may get harmed. The reflector-bearer must accept responsibility for the change in consequence between the punch and the rapier.
There is a third option -- one can readily design reflectors that disperse the energy or generically attempt to reflect it upward. Those are the tools of true pacifists.