Yeah we avoid those cyanide containing root vegetables, even in prepared snacks. They just aren’t that much better than the dead simple safe variety. Like how different is a yucca than a sweet potato?? This story always comes to mind when I hear cassava or yucca
I’m not even a fan of tapioca since it comes from cassava, though I know by its very nature is much more likely to be safe
https://www.nbcnews.com/id/wbna7136123