A vanilla soy latte is not a 3 bean soup! There is only one bean actually in the soup. Unless you are scraping the vanilla pod into it and sprinkling grounds on top, the other two “beans” are merely extracts.
I agree with your premise, and here is some additional unsolicited information:
Vanilla ‘beans’ technically are fruit from hand-pollinated orchids! So scraping a seed pod or using extract makes no difference. It’s never been a bean.
Coffee ‘beans’ are seeds from the fruit of coffee trees and shrubs.
Why juice more than soup? None of the fruits are squeezed. Except maybe soy, not sure how soy milk is made. Anyway, for vanilla and coffee it's closer to tea than soup or juice. Also, closer to soup than juice as well, imo. Or broth if you wanna be specific. Right? Since it's an infusion like broth is. That's how I see it, at least. Maybe I'm nuts