These sorts of products aren't typically driven by consumer wants. Rather they're typically driven by B2B/sales/marketing/investor types, who are primarily focused on finding/addressing secondary markets for further profits, more so than it is about addressing core consumer wants.
In other words, these product decisions aren't really made on the rationale that internet connected coffee makers make sense from the standpoint of a consumer who simply wants coffee made...
It's more: "let's make smart coffee makers so that we can sell to 2 markets:
1) a coffee maker to consumers who want coffee made
2) consumers data/eyeballs to advertisers who want their info/eyes