What if I know what kind I like and don't want to change that? I don't see why you think it's such a bad idea for people who know what they like and want to make their lives easier with a little button. You don't have to get one, but don't try to make people who want one out to be mindless consumer drones.
I'm not commenting on the people who want to use the service, I'm commenting on the video which is unashamedly monoculture big-business. If they'd included a custom button for organic honey from the local local yoghurt-weaver I wouldn't feel quite so negative...