I think it's a cool idea to drop food consumption, though I do feel like it disproportionately helps me more. Like @Jets says, I just balance it into my build, but as Thane says, it's less about the food and more about the reconfiguration of buildings. And I'm all for it.
I also love @Mack10 's idea of having a spell, basically the opposite of Freeze, where all food consumptions are 0, call it King's Feast. Since many people want casters to be useful and specialized, this could be for them only, like Freeze is.