Except this isn't an apt comparison at all. Ardenweald is a country, Anima is more like rations in this case and the seeds and groves are considered a different group of people from the Caretakers in charge. The caretakers are literally deciding that the seeds are not worth the rations being assigned to them and are systematically choosing groves, taking or 'reclaiming' all the rations for themselves, destroying them in the process, in order to ensure they survive. They are purposely killing souls to ensure their survival. They may say they're "saving Ardenweald" but they're still purposely causing harm.
Not others, themselves. They've already culled more than one grove and there is no indication that they're stopping at this one.
There isn't ill intent in destroying someone else's existence/future in order to ensure the continuation of your own? Plus you can't say they're doing it in a friendly manner, there is a clear apathy expressed towards the groves with how easily they take to the task of ending the soul's germination and taking the Anima for themselves especially with the suggestion they've already culled multiple other groves.