Hi there - I maintain https://github.com/layday/github-wow-addon-catalogue, a script which catalogues WoW add-ons hosted on GH. I noticed that my script failed to parse the release.json file both of this add-on and tRP3_RPNameInQuests. The reason was that the TBC flavor value is tbc, whereas the one defined in the BigWigs packager is bcc. Add-on managers will most likely have based their implementation on the BW packager and might not be able to install NPCRPGossip or tRP3_RPNameInQuests for TBC - or at all, if they validate the release metadata.

Fixed with today's release, thank you!