From the summary:
...he says that data won't be shared with anyone, including Google, without a customer's permission. ...
What he actually says is:
...Like Nest customer data, Dropcam will come under Nest’s privacy policy, which explains that data won’t be shared with anyone (including Google) without a customer’s permission....
What Nest's privacy policy actually says is:
We pledge to: ... Ask your permission before sharing your Personally Identifiable Information with third parties for purposes other than to provide Nest’s services,
Notice how, we won't share your data with anyone without your permission in the article suddenly morphs into we won't share your personally identifiable information with anyone in the actual privacy policy statement?
What about the other non-personally identifiable data, like when my house is empty? Or how many people are in the house? etc, etc.