Matt,
As I am certain that you are aware Regulations Z and the Official Commentary do not mention Amish Aid, and I am not ware of any provide guidance the CFPB may have issued. Although I am familiar with Amish Aid there is littler depth to my knowledge on the topic. I was under the impression that insurance was provided by the church and no individual premiums are paid. If there are scheduled payments my answer may differ.
A safe approach may be to disclose typical homeowners insurance premiums for your area on the Loan Estimate. If at closing typical insurance is not selected and “no cost” Amish Aid” is relied on then no cost would be reflected on the Closing Disclosure and the cost from the Loan Estimate used in the good faith analysis would also be zero.