Here's another video from a different channel, where the H2essential was used at the front of a chamber performance stage (you can see it there) and an H2n was used as a spot mic on the piano. Again, I find the results to be surprisingly good and could be tweaked a little to add to the bottom end according to taste. Apparently the XY configuration was used in the recorders rather than MS.
https://youtu.be/P-TevXJWXOc?si=bH0QnefKSQtuAxEJThere are some moments of silence between movements where I can't hear any significant system noise.
I have heard from the uploader of the video involving larger scale performances that indeed the H2e was used without external mics. The levels were somewhat processed afterwards for the purpose of the video, including the use of a limiter effect, which means that the original dynamic range was greater than that in the video.
After all my years of running cables trip-free through concert halls I am quite jealous to see recordings being made without any cables at all!