Tim Berners-Lee is not the equivalent of the W3C (though he did vote for EME).
I think the main reason to allow this is that otherwise the only effect is that the same thing will happen in a non-standard fashion with Apps and other binaries being the way to access protected content.
That said, I'm not happy with it either and I wished that the web would remain DRM free, the only reason it has the adoption that it does is because it was open from the beginning.
Finally, the way to vote as a consumer is with your feet: simply refuse to access DRM protected content and it will go away all by itself.
I think the main reason to allow this is that otherwise the only effect is that the same thing will happen in a non-standard fashion with Apps and other binaries being the way to access protected content.
That said, I'm not happy with it either and I wished that the web would remain DRM free, the only reason it has the adoption that it does is because it was open from the beginning.
Finally, the way to vote as a consumer is with your feet: simply refuse to access DRM protected content and it will go away all by itself.