I'm confused as to what FedEx has to do with this article. It is in the article's title, but is only mentioned in passing in the concluding paragraph.
Done well, it's actually ok: you read the article looking for that last breadcrumb from the headline, and find it in the last paragraph with a sort of 'a-ha!' moment.
Here it's done badly, with some vague handwaving about how ad spend might go to Fedex for free returns.
As a consumer, if I were given a choice between intrusive cross-site tracking and free returns, the choice is completely obvious.