These are the people that might only use their computer for a few minutes a day to check their email, go on facebook. They just don't have any interest in running modern games like Battlefield. Of course the open driver isn't perfect, but it's capable of displaying Facebook within Firefox. There isn't really a reason for these people to use the closed drivers.
For people who watch HD video, then I will admit that the Nvidia blob with vdpau is better than nouveau currently. But on AMD, both drivers are equally bad at accelerating video.
I'm not deluding myself that everyone else who uses a computer is like me and is interested in hardcore gaming.