From your posted article The team emphasized that these deaths may or may not be directly related to COVID-19; however, the excess death rates among the Amish/Mennonites mirrored the general COVID-19 infection waves in the United States
There are dozens of articles readily available outlining in deep detail the oversized impact of Covid on the Amish population. I suggest you go read them. it has been outlined on this thread previously. https://www.elitetrader.com/et/threads/meme-of-the-day.372517/page-10#post-5813487