He said in the article: "Look… some products need a Launch... But for a lot of businesses, it’s better to get there as part of a product-driven process." All y

He said in the article: "Look… some products need a Launch... But for a lot of businesses, it’s better to get there as part of a product-driven process." All your examples are social networks that need a critical mass of users before there is any point. You can't have a social network without people. For many products, the user experience doesn't depend on other users, so they don't need the same level of marketing.