By the sounds of the CBC article, it appears this would be considered an engineering failure, multiplied 50x.
https://www.cbc.ca/news/canada/new-brunswick/cracks-in-foundation-led-to-wind-turbine-collapse-1.6312668
I don't use RISA Foundation very much, I have a copy of an older version, 4.0. I am modelling a raft slab foundation for a small (120 ft x 60 ft) building on very poor soils. Piles are not an option. Soil is very sensitive to differential loading. The building is a single storey with all loads...