It is the opposite of Internet in a box. This exemplifies how, in our day and age, "The Internet" is mostly a one-sided experience where a few large organizations offer a bunch of content, which they control, for your perusal. It would have been more "Internet in a box" if it would have helped people set up their own services and pages; and if it were extensible using other radio-capable devices.
I was thinking this too. They do talk about using FileZilla or Nextcloud to upload files, and mention using CMSes like WordPress, so maybe it's quite possible, just not a big focus. I agree that making it easy for teachers, students, and anyone in the community making their own discoverable webpages would be a great aspect to this.
Related FAQ #4, #5 here: - https://wiki.iiab.io/go/FAQ#Can_teachers_display_their_own_c...? - https://wiki.iiab.io/go/FAQ#Can_students_upload_their_own_wo...?
and README: - https://github.com/iiab/iiab/blob/master/roles/usb_lib/READM...