It appears that this page /cgi-bin/koha/admin/background_jobs.pl isn't linked from anywhere but the "we've enqueued this" pages on biblio modification. Librarians ought to be able to find this page easily so if they click off of the page and go about their lives, they can come back to make sure their jobs completed.
Agreed. This is a duplicate of bug 29020 which has a bit more of a following, so going to close this one in favour of that one. *** This bug has been marked as a duplicate of bug 29020 ***