That does not opt you out of the policy:

To provide location-based services on Apple products, Apple and our partners and licensees may collect, use, and share precise location data, including the real-time geographic location of your Apple computer or device. This location data is collected anonymously in a form that does not personally identify you and is used by Apple and our partners and licensees to provide and improve location-based products and services. For example, we may share geographic location with application providers when you opt in to their location services.

They might be using it to sell advertizing today, but that's far from the only thing they can do with that data.

Browsing the store does not send them location information except for an IP address. The system never requests location information without giving a confirmation dialog first.

This hasn't ever changed and I don't see why it would have. The only thing that has changed is that you read a misleading article.

I don't know why people keep mentioning that website in the context of the location issue.

iAds/oo.apple.com are in a different section of the privacy policy entirely. They have nothing to do with location tracking.