This is by design. When efficiency is pursued for greed, the gains typically only go into more greed and not into living a more relaxed life. Most modern economies still require 40 hours of work every week no matter how efficient production becomes, and this is par for the course for the past 300 years of industrialization. The Amish do use plenty of tools and the set is decided by each congregation. The core idea is to have enough but disincentivized people from the excess pursuit of material profit.