Sure plants have safety mechanisms to protect human Life. So does your car, but it will still let you do stupid things with it. Sometimes they are ok: person in

Sure plants have safety mechanisms to protect human Life. So does your car, but it will still let you do stupid things with it. Sometimes they are ok: person in the car is injured and I need to drive in a way that might normally be unsafe. The machine can’t make the judgement calls about when it is ok to operate outside of the normal desired operating envelope. Machines have physical limits and usually they are built to protect themselves from damage, but you can still crash a plane or a car or put a brick on your gas pedal and leave the car in neutral and destroy your engine. In this specific case I imagine the plant wasn’t physically capable of dosing at that rate - and there should be alarms if the outgoing water is outside the desired operating parameters.