That's okay to disagree. But the idea of not eating until one is satiated is not new. Hippocrates said "If you still have a slight sensation of hunger after a meal - you have eaten well. if you feel full - you have poisoned yourself."

I suspect the divergence in opinion comes from the how one defines well-being. Hedonic well-being tends to focus on fulfilling one's appetites, whether hunger or sex or whatever. The problem with that is humans tend toward hedonic adaptation and it can become an endless treadmill to try and feel "full". In a resource rich environment, this can obviously lead to a lot of bad outcomes.