If the cause of her death was loose-fitting clothing that's normally prohibited from those environments because it's a serious danger and workers have been getting caught in machinery as long as we've had machinery to get caught in - and the only reason she was able to wear the clothing in that environment was because of her religious rights guaranteed under the Canadian Charter of Rights and Freedoms (which states that her religious rights supersede any written legal code) then this mortal risk might be something she fought to take on, even if the company recommended against it.

Imagine for a second that you're a motorcycle police officer, where it's customary (even law) to wear a helmet, but you (for religious reasons) wanted to wear your religious headwear in lieu of a helmet. Then imagine you were killed on the job in a motorcycle crash due to a blow to the skull. Would there be a need for a month-long undercover investigation to uncover the reason you died?