To my knowledge they were druids more in the same sense as there have been druids in our history. They could affect nature and heal, and most likely that is kind of magic most humans can have if they are enough attuned to the nature.
Regarding learning how to shape shift the original quests for different shapeshift forms included visiting animal spirits that gave their secret knowledge of the animal form and only after that you could use the form. Even though class quests are not part of the game anymore I would assume that visiting the spirits of each animal forms are something that druids still have to do, just like your druid has done.
Of course I do not know your whole story so I can't say if it's valid or not, but the shapeshifting is something I just wish you to be at least aware of.