I see what you mean. Why I thought he meant preference:
1) talks about “utility of all humans”, whereas a classical utilitarian would more likely have used something like “well-being”. However, you can interpret is as a general placeholder for “whatever matters”.
3) is also something that you mention in economics usually, associated with preference-models. Here again, it is true that diminishing marginal utility also applies for classical utilitarianism.
I see what you mean. Why I thought he meant preference:
1) talks about “utility of all humans”, whereas a classical utilitarian would more likely have used something like “well-being”. However, you can interpret is as a general placeholder for “whatever matters”.
3) is also something that you mention in economics usually, associated with preference-models. Here again, it is true that diminishing marginal utility also applies for classical utilitarianism.