Looks interesting but I'd be concerned about restricting air flow. I'll probably be cursed for saying this, but the only bike I've felt a need to put on a radiator shield was a Vstrom I had that I took in some pretty sketchy places.
Even after 60k miles with it on, and when I took it off to sell the bike, I couldn't see any impacts that would have damaged the radiator. The N1K doesn't have near as open an area to let stuff penetrate as did the Vstrom.
I suppose a well aimed sharp rock could some how navigate the space right between the fork tubes and puncture it but I am not betting on it. Looks cool though and as long as it doesn't add a lot more weight, nor restrict air flow, why not? OTOH I am on a diet and trying to shave all the weight I can from the bike where it makes sense. I have to offset some of my add like the bags and my auxiliary lights.