From non-native speaker perspective, it sounds like it also obscured the truth: visually challenged can still consume visual info, blind - can’t. For the former

From non-native speaker perspective, it sounds like it also obscured the truth: visually challenged can still consume visual info, blind - can’t. For the former larger fonts, adapted color palette, simplified graphics, etc can be useful, for the latter no amount of adaptations will work and you have to completely switch to audio or tactile mode of communication.