I think I see your point; when I was a kid I saw charts that handled them separately. (I think it was during Reagan’s or Clinton’s term that they got kerfuddled together.) But it doesn’t help matters that the terms “fruit” and “vegetable” are problematic, at least in English. What a layman thinks is a fruit can be drastically different than what a biologist or lawyer thinks is one, thanks to a real mess of culinary and legal tradition. (The tomato is the textbook example.)