One complication with this approach is that it still includes a Mark Complete button by default. As a facilitated course, however, forced lesson progression may not be needed, so the button could be hidden with CSS to avoid confusion.
This lesson includes a discussion forum for week 1 of a facilitated program. In a hypothetical example, a new course could be released each week (by assigning it to a group) for a facilitated program, and each week’s course could include a discussion forum specific to that week. The forum for the first week is embedded below.