So, there’s no way to switch off notifications from private lists. You have to switch them off for everything.
In this case, the harm was minimal. I’ll have to find something else as a surprise gift. But imagine if I had a “private” wishlist for something embarrassing or upsetting? I don’t remember ever switching on the option for my Alexa to announce to my entire household that there is a price-drop on my weird fetish.
I’ve written before about anti-social app design. The tech bros working on apps often don’t consider that people have families. And that they live with people that they want to keep secrets from.
According to the UK’s Office of National Statistics – only 28% of households contain a single occupant. The majority of people live with other people.