I think Optech has done a great job of surfacing and summarizing "RTFM"-type content from from the mailing list, github, delving, etc. But two points on that:
1. There are communications/informations that Optech wouldnt typically cover that could still be valuable for a wider audience. In the OP_RETURN skirmish example: information around moderation policies, who are the moderators, what is a "BAN", etc.
2. As Bitcoin grows, the Optech content becomes less accessible or even reachable for the "average" Bitcoiner and Optech summary content itself becomes "RTFM" in need of translation for a wider audience.
I agree with your thoughts, and am really just adding my $.02 on the "has been adequately disseminated" point.