Until GatherMate2_Data gets updated, people might want to look at WoWGatheringNodes. It is a Gathermate2/Gatherer import db uses the latest WoWhead data. It also adds the ability to import data on object not currently supported by Gathermate2 like the Wyrmtongue treasures.
I don't think this thread needs to continue Nevcairiel has pushed an official update on July 21, 2018 for patch 8.0.1. In the update, he ran the auto-parser to pull data directly from Wowhead and WowDB.
How do we go about importing and sharing this? Don't want to overwrite my existing data with someone elses. Also is there a way to instantly share nodes with guild using gathermate2_sharing? Right now it seems we all have to be online to get each others nodes.