Or, in fact, the safe way to fly VFR at night.
No, it's just suckering in people who don't have the skills or recency to give it a go, and when they give it a go and it turns out to be too dark the situation ends up exceeding their capability. If it's that dark that you need to cross reference to instruments it's too dark to be flying a helicopter that requires you to be able to see the ground to maintain orientation.
And do please tell how you do that when it is dark (except with a cloudless night and full moon).
Easy. The decision is made for you by the RFM. If you don't have a clear night with ample celestial illumination to see the ground, or otherwise if you're not flying over a brightly lit city, the RFM is pretty much compelling you to stay on the ground. Which is what you should be doing in that helicopter if there is any doubt as to whether you'll be able to maintain orientation visually.