But playing devil's advocate, would there not be a good case for wearing parachutes
when test flying new helicopters with such a deviation from more traditional construction techniques?
Which bit deviates? The fuselage is a "one piece" carbon monocoque which sounds nice but has its limits.
i.e. you damage the tail and you have just damaged the whole fuselage.
The mechanicals are nothing special at all and probably as technically brilliant as a H300.
Parachute - you would need to be at least clear from the thing to deploy at the minimum of ~ 700'.
In this case I doubt that the thing would have remained stable enough after you unstrap, open door etc etc
and hoping that it is the right way up - good luck with that one.
Don't lose sight of the fact that this is an aircraft with a Special Category—Amateur-Built Aircraft Airworthiness Certificate.