The issue is that this toes the line on erasure. If a character is disabled but offsetting all of their disabilities with magic, they’re not disabled. The disability is just flavor text at that point, which feels a little bit like wearing an offensive caricature of a race as a Halloween costume.

If you want to include a disabled character in the party, that’s great. But disabilities come with drawbacks that real people with disabilities struggle with every day. If a person with a disability wants to erase their disability in a fantasy setting, that’s cool. At that point, it could simply be a power fantasy, the same way people want to play super powerful wizards and super strong barbarians.

But if an otherwise able bodied person wants to play a caricature of a disabled person without actually role playing the disabled part, it could become downright offensive to the people who actually struggle with those disabilities. Because at that point it’s not roleplaying a disabled person; It’s just leaning on stereotypes when it’s convenient, without actually roleplaying the real life struggles that accompany the disability.

Look at Toph from Avatar as a good example. She was blind and used her abilities to offset that when possible. But the important part is that she was still blind, and still regularly dealt with the drawbacks from being blind. She couldn’t read or write, because braille hadn’t been invented. And if she was ever away from solid ground, (like when flying or on sand) she wasn’t able to see anything. Because her sense of “sight” relied on her physical connection to the solid ground. So when she wasn’t touching solid earth, she was completely blind. And she also couldn’t see anything that was airborne, like when they were attacked by giant flying insects. She was blindly throwing rocks into the air, because she couldn’t see where the enemies were.