It was an answer to the question that the original question was posed to answer.
Also, it’s quite common to have thought experiments where you’re told to assume all else is equal, even though the assumption is insane. I can’t just assume that I’m not going to go to jail for murdering the guy on the track. I merely assumed that I care about my physical ability the same as I do in real life. It might go against the premise of the question, but it’s the sort of “assume all else is equal” thing you’re generally supposed to do with these questions.
It was an answer to the question that the original question was posed to answer.
Also, it’s quite common to have thought experiments where you’re told to assume all else is equal, even though the assumption is insane. I can’t just assume that I’m not going to go to jail for murdering the guy on the track. I merely assumed that I care about my physical ability the same as I do in real life. It might go against the premise of the question, but it’s the sort of “assume all else is equal” thing you’re generally supposed to do with these questions.