Earlier quoted context omitted.
I'm unconvinced. Artificial sweeteners still have the problem that you prime yourself to expect sugar-flavors in everything.
You're not convinced it decreases the incentive? And having one major problem is better than two.
I've been on a campaign of cutting sugar down as much as I can: even in nominally "sweet" things it's incredible how much sugar standard recipes will call for then you can 1/3rd to 1/4 as much and get a superior result.