No, I would absolutely agree. I think we're talking about discrimination here. These products could be accessible.
I'm not saying that they could be in every case. A very small publisher who is releasing only a few hundred copies of a work is probably not going to be in a position to do multiple formats in Braille, audio, and other things like that.
But in a large majority of the cases, the products could be accessible, and without causing an undue hardship, which is the test for violating human rights. So yes, I think we're absolutely talking about a violation of human rights here.