If all are assumed to be powered, then I think an assumed failure rate is acceptable to the warranty. Are they going to have an interface that "reports" bad sh

If all are assumed to be powered, then I think an assumed failure rate is acceptable to the warranty. Are they going to have an interface that "reports" bad shingles on your roof? Hell no! But if you're roof is generating whatever the acceptable range is for the area, then you're good.