When I go bouldering up to heights of 3 m above the ground I would as a minimum make sure I had a spotter watching me in case I fall. Their sole job if I slip is to make sure my upper torso does not hit the ground,
But lets face it if the pilot is not lazy why can't they have maintenance drag out a set of access steps or platform to check the head. It might seem really dumb but people have died let alone been injured by falling just a few feet. But hey if it's your heli or your firm don't really take H&S very seriously carry on.