This makes a lot of sense, when you think about it. Usually to get GE, you have an interview, at which time presumably CBP can explain in a bit more detail that "no, 'food' doesn't mean milk chocolates and chewing gum." CBP probably also operates on the assumption that many/most GE members are relatively experienced travellers who are, by definition, supposedly less likely to bend or break the rules.

I could be wrong, but I don't think the kiosk question was originally quite that specific about food. If it has changed, it is probably because of folks like me who took no chances, only to get told, rather snippily, "'This? This isn't food. Why are you wasting my time?" I've been honest, I declared things with GE that I never would have declared prior to GE, 'out of an abundance of caution.'