Derailment can be a result of sabotage. The location is near major food and water sources. So while not exactly a conspiracy yet, it seems important to understand exactly what occurred in this derailment.
Also a lack of proper physical safety measures. Known safety improvements that were recently blocked[0] specifically the requirement to run hazards/flammable liquids with ECP Brakes which reducing stopping distance by >50% and also prevent cars from building pressure in between better braking cars and derailing.
That's what makes it such a great target. The decaying state of our infrastructure makes it easy to sabotage in subtle ways and then blame it on negligence.