I don't know much about the sawstop story. However I know a lawyer who specializes corporate liability who shared this little bit of general information with me. Just about any company that sells a product in the USA has to be concerned about offering a safety feature that then fails, or offering a safety feature on only part of your product line. The example he gave was (from his firsthand experience) was of a zipper manufacturer coming out with "child safe" feature (if it broke none of the parts were a choking hazard) and that some clothing manufacturers started requiring this zipper in adult clothing since they had a history of knowing about choking hazards in all zippers they could have been accused of ignoring the deaths of adult zipper eaters (must be a bigger problem that I realized).