But if sugar is addictive, as it seems it is, this would cost a significant fraction of annual revenue to food producers, so there's no way they'd do it. Even if it's not literally addictive, it's clearly attractive and they'd take a big hit.
What baffles me is that artificial sweeteners exist and yet there is enough (imo) unfounded FUD about them that leads people to instead choose Sugar or Nothing (which inevitably translates to Sugar because of the pseudo-addictiveness you mention.) Is wireheading bad? Maybe, but if I'm going to be doing it either way I'd rather reduce the harm.
But weirdly it somehow depends on the ratio of the ingredients. Some brands I can handle, others I can never partake in (Pepsi MAX being the worst offender).