This is interesting. My bet is that the people who developed this theory are not addicts, because addicts know that if we could just decide based on what makes us happier in the long run we would. But we be addicts. We think now. Just saying.
So IMHO, we gotta just decide that whether it is pleasurable or not, whether it makes us happier or not, we have to take action to stop based on the faith/belief that it gonna be better than where we are at.
Why do I say this? Because the action always comes first and the emotion second. I don't drink, makes me happy. But I don't get happy and then stop drinking. I can't be happy by not drinking first, the action of not drinking has to come first. And I don't know if its going to make me happy and as an addict, I think that it gonna make me unhappy, so I gotta stop first before I see, sh*t this kinda make me happy. That is where the trust/faith comes in. And its also why sometimes things gotta get pretty bad before stopping looks better.
Bottom line -- I wish we addicts be more rational, but not this one.
Good thinking here. Thanks.