He emphasizes the importance of focusing on the primary keyword or service you want to rank for when considering where to build backlinks. While building backlinks to supporting content is not as vital as the top level page, it is still beneficial. My recommendation for structuring your website with a home page, top level category page, and supporting content, as building backlinks to the top level page will pass PageRank and provide benefits to the supporting content. He concludes by highlighting the significance of allocating resources to all pages to ensure effective rankings.