It is of course right that Animists can attempt to defend themselves using a wide variety of reactive defences such as potions, herb alkars, defensive items etc.
However, the desire to avoid that side of Avalon, which is inherently combattive in feel is what led many of us to become Animists in the first place. The skills which Astreas quest removes are precisely those which allow us not to have to be forever watchful and ready to throw up the right defence for the right attack.
This quest does such major damage to our way of life that I for one, will view with deep emnity anyone involved in raising in it. That means no help, no healing, no herbs, no wurtfoil and every last piece of trickery and inconvenience I can manage.
This, off course, reflects my personal views only.