The phrase "IoT" when used by techies refers to things like the link. The phrase "IoT" in a business content refers to things like Amazon Dash; the purpose is not related to helping the user in ways other than monetisation.
Eh, IoT just means devices not typically considered (having) a computer are now computers (though they likely had embedded systems in them for ages now), and more importantly--they are connected to the internet.
That it's being used for monetization (fridge ordering more milk, dash buttons, etc.) is just a symptom.
And further: "The S in IoT stands for security" [1].
