My recollection is that porn companies initially backed HD-DVD. I distinctly remember thinking it would win for that reason.
Blu-ray won at least partially because the PS3 was the cheapest next-gen optical player, while Xbox360 didn't support HD-DVD without an expensive add-on. (And stand-alone players for either were very expensive.)
Also taking legal action against people who helped your customers resolve the consequences of such an attack seems perfectly normal and not at all contrary to that narrative.
Could magic overcome, resolve or undo a disability?
Some, certainly. Assuming D&D, mid-level clerics can restore missing limbs (and, though the spell description doesn't mention them specifically, I would argue ocular, auditory, and spinal injuries as well). So disability due to injury should at least be less common than in the real world.
Congenital issues, on the other hand, are much more difficult. Wish would work, but that's not exactly accessible.
That said, there's considerable potential for the magical equivalent of prostheses and other accessibility devices to be more effective than their real-world counterparts.
That rainbow is a promise from God that 10 will never be greater than 3 again.