So before the patch/changes. the Hivemind use to let you herb on all of the characters besides the "main" without using anything special. I noticed after the patch it stopped working, and just assumed I would need to use the consumable from blacksmithing to fix. That's a bummer if that also does not work on the followers.
It made it for a very relaxing experience to just run around and herb without worrying about the extra team getting stuck/dazed.
With flying out, I haven't looked but I wonder if the prices have dropped significantly. They did in legion it felt like.