Well it is quite strange to be so offended of disabled people that you would leave the game
But as a devil's advocate what the problem is actually a world building one.
If you establish that the world has magic, magic is widespread and powerful then the fact that there are disabled people could be slightly immersion breaking. For example in DnD lesser restoration a 2nd lvl spell would cure most blindnesses (well except if the person has actually lost their eyes). Hard to say anything more because you gave so little details. Ultimately that person had a disproportionate response but I find your meme both pointless what aboutism and generalization. Hope you have a good day.