While at first glance this may disprove the idea that they don't cut losses, it actually furthers the argument that advertising revenue creates perverted incentives, since they blew massive amounts of money on projects with no financial value. Moreover, while those products are dead, the data gained likely made its way into the advertising information flow. If you were a competitor to one of those dead products, or an advertising company that has to carefully evaluate the cost effectiveness of an auxiliary product, Google has an "unfair" advantage over you.