I appreciate you have a firm view on this, however keep in mind that others use the plugin differently from you - quite a few people want their WP Discourse topics to be unlisted by default - and that the change was also made for usability issues from the opposite direction, for example see
I had encountered versions of the same problem in other contexts. I also appreciate what you’re saying. The situation here is more one of weighing up options. I’ll take another look at this tomorrow.