Why does Announcement Redesign have two options for Parity that we never had before?

Community Explorer

For feature parity for Announcement Redesign it states that :

  • Users must post before seeing replies
  • Reply posts can be marked as read or unread

This is incorrect as its not part of Announcements rather part of Discussions, a student will never post an announcement to see replies to it?  Also I dont understand why there is a feature for replies that can be marked as read or unread, announcements wouldn't have these.  Just because something is added to Discussions it doesn't make it relevant for Announcements.