Because of the stress that has been noted, meetings, talks, preaching etc....thus the reason that there is a high rate of mental health issues with many in the borg. They look at the anxiety that they have, and basically are told it is a failure on their part. Whether that be not spiritual enough, not relying on Jeh, not praying enough...the list goes on and on. No one tells them that this way of life produces anxiety, and that their feelings are a common reaction.
Leslie