Yes I think we are pretty close. It is possible to generalize, and generalizations are generally useful.
What I generally am fighting against is what I perceive to be also a "general" point of view of most people we run into in the outside world -- that there is some "objective" measurement to which all people should conform, including their view of whether something is pleasurable or painful.
I see this as another instance where it is necessary to simultaneously affirm two things that people think are in conflict:
(1) generalizations (about the sense of pleasure and many other things) are indeed generally useful as a matter of practice, so long as we acknowledge that they derive from the particular circumstances and people involved.
BUT
(2) Generalizations do not arise from supernatural means, nor is there a Platonic ideal or an Aristotelian "essence" by which anyone can say that there is only one "right" answer to a particular question.
The general tendency of people, due to religion and false philosophy, to embrace "objective" standards for all people at all times and all places is so strong, and so pervasive, and so insidious, that I think it is necessary to constantly "shout" that (like Diogenes of Oinoanda). As I experience life, in almost every conversation with the general world we can be sure that they are thinking that such an objective standard does exist. And they are presuming that we agree with them!
And this goes much further than basic pleasure sensations, but extends (because pleasures and pain are the starting point for all choices) into every ethical question as well.