Completely agree with this! (Brief disclaimer, not hating just something I also find frustrating and wanna talk about. I don't want to sound mean, I literally have no sense of tone so please point out if I said anything that could come across as wrongfully rude)
Personally it just doesn't really sit right with me. I've briefly attempted fanfics before (and write alot as a hobby) and yeah, it's definitely more difficult to write a blind character but it's not impossible by any means and if someone doesn't want to write a blind character they can pick a. different. character.
And (oh no, Nyx is saying the thing) is that not literally ableism? I'm not a professional or someone who knows alot about it but it feels like blatant ableism with the excuse of "yeah just didn't feel like it" or "it's too hard" which is not okay whatsoever. Like, there's literally so many writing tools, reddit and Tumblr posts, there's examples, it's not that difficult guys. And by the way saying "I just didn't want to include it" about someone's DISABILITY is actually insane, like, I'm sorry what?
And hey, maybe they want to write a fic with Jouno and just don't think they can write him well with the disability. That's fine but for the love of god at least make a reason he got his eye sight back, hell it could even be a sideplot but just making him able to see with no explanation is annoying and frustrating as a reader because (I feel like) that's a very important part of his character. Again, it is a disability and erasing any character's disability in ANY form of media feels icky and ableist. ESPECIALLY when it's 'cured' for no apparent reason because disabilities shouldn't be treated like something that's wrong with someone and has to be cured. If anything it makes the character more interesting! Like yes, he has other things going for him but the at that point why not just write a different character? Or if it's a "oh, no, I wouldn't be able to write it well" okay, WHY NOT TRY?? You don't become good at it by not writing stuff like that and maybe it'll be fun to experiment!
Adding into the third paragraph, to be blunt, I gotta say Jouno not being able to see how hot his love interest is isn't that much of an issue. One of my favorite Suegiku fics has a part where Jouno maps out his face with his hands to try and /feel/ what he looks like and that was such a good scene and an amazing way to showcase what I mean. Another example could be voice, maybe he likes certain aspects of their personality or mannerisms, maybe he likes the way they smell or the feel of their hair, maybe how their hands feel in his etc. There's SO many good ways to make a romance between a blind and seeing character without having it feel cheap or bland! Like, even x reader oneshots or shitty smut fics, it's not difficult.
But hey, at the end of the day do what you want, no one is stopping you. Fanfics are fanfics, no one expects professional writing and never let someone else's opinion stop you from doing something. As I tend to say, free will exists, so use it. As long as what you're doing isn't harmful or spreading hate then go for it! To anyone who actually read through my little rant have a wonderful rest of your day ♡