I use and enjoy all of these things but the DRM they include isn't why they are successful - it's the fact that they make it so much easier to deliver content to anyone, immediately, bypassing the normal 'store shelves' systems of distribution. (well, as long as you're in North America or some parts of Europe.)
While I agree that the EFF's message is often more reactionary than necessary, the DRM in these services serves no purpose except to make to provide a placebo to traditional commercial content owners, to get the content on those services. Ultimately, this is only a placebo. Netflix exclusives appear on the Pirate Bay minutes or hours after they go up on the service. Yet Netflix not only survives, but thrives - to such a degree that people use VPNs to circumvent the region locks, not the payment system.
How many years has it been since iTunes music went DRM-free? Yet it's the most popular means of acquiring paid-for music. Build a successful distribution system, make it available to everyone, and people will pay for content.