I used to think this too and asked some whom I met while traveling. Their response was that they aren't absolutists about this: the rule itself isn't the corner

I used to think this too and asked some whom I met while traveling. Their response was that they aren't absolutists about this: the rule itself isn't the cornerstone of their belief system. Some compromises are not controversial, say to enable trade with neighbors. I realized afterwards that their decision tree could be compressed to two conditions: keeping everyone in the community really busy, and not interfering with their social and moral norms. These two aren't entirely unrelated but are different enough to state separately. I believe as long as these two conditions are met they will not see technological tools as harmful.