Why do you believe there's a link to blood-clotting, and not to, say, broken dishwashers? People (especially on HN) like to say "correlation doesn't equal caus

Why do you believe there's a link to blood-clotting, and not to, say, broken dishwashers? People (especially on HN) like to say "correlation doesn't equal causation", but there isn't even a correlation here. There are not higher rates of blood clots.