I think I might have have fixed all of the missing post kinds metadata, thanks to the Feedly cache of my RSS feed. Please let me know if you come across any posts which seem to be missing information or context.
“I’ve returned all of the wrongly-pended posts to “publish” status. I do still have an issue with Post-Kinds data being missing on most of these posts; I think this is due to some wierd interaction between WP-CLI and the plugin, but I can’t be sure. These posts (~60) I’m going to have to fix by hand — I consider it a reprimand for my earlier flippant approach!”