If this reduces wind noise by having a smaller opening, I am all for it. The QR code should be replaced with a picture of how to remove the back, scanning a code for emergency instructions is just a horrible idea. I wonder how your intercom would mount as not to interfere with the release and if the speakers have a suitable mounting location.
I sometimes use a helmet skirt that loves to try and rip my ears off if I don't have something on my head to help guide it over my ears. Sealing the neck opening definitely reduces the noise.