It did for me too, my guess was that any interruption of the ritual opens them to risk again and the refugees are what caused it. Instead of blaming just you, they cleanse the grove.

What is the problem you are solving? Does your proposed change solve the problem? Is your change feasible? What else will be affected by your change? Will your change impact revenue? Does your change align with the goals and strategies of the organizations (Larian, WotC)?