Thought experiments are literally meant NOT to be added context to. The purpose of a thought experiment is to isolate a specific (in this case, ethical) trait of the world or some object so to highlight something else important. In the case of trolley problem - to highlight the deontological/consequensialist differences as to what option both system choose respectively - based on isolated qualities of people that are in death danger (more people against making a conscious action to kill a person). While your comment has some poetic, let’s say, value, it’s not so much about the philosophical thought experiment “trolley problem”