Thanks. One of the things that Moodle does poorly is section management for multi-section courses. (I'd go so far as to suggest this doesn't exist. Or if it does, our IT doesn't support it.) We get separate Moodle pages created for each section we teach; in a multi-section course, if all instructors agree to coordination, we have to jointly submit a special request to create a meta-course that pulls in all the sections, but within that there is no means of sorting by section.
So probably it makes sense to delete the section data.
So probably it makes sense to delete the section data.