DeltaFree,
Maybe this procedure is all the aircraft is capable of demonstrating. If you do the "backup" manouevre it won't get back to the pad. It would sound that it is possibly of little benefit but it is there. Is there not another page in the manual which refers to this procedure like the "corrected weight" pages often found in Eurocopter flight manuals.
It is difficult to understand your concerns without information as to how the procedure is determined.
On the original Puma all this procedure was based on pitch angle and timing there being few other usable cues to the pilot.
The procedures for the Cat A vertical can differ from type to type and are not "generic". They are published in the flight manual. It would be interesting for you to post the useful load that is claimed for this procedure at say S/L ISA+10.
Maybe EC have not developed a procedure as yet. I know for a fact that the certified envelope has not yet been extended to the true capabilities of the aircraft. There is a 155B1 in the wings.