Gotta disagree. Sometimes a character is an exploration of a concept or personal feelings, and sometimes that is inherently tied to something, such as a disability.

Theres a diference, Daredevil and Profesor X had their disavilities be deal with in creative ways, the former has his other senses enchanced and the latter has a futuristic chair and is a mentor character not an adventurer or need to be constantly on the move
Now every disabled charcater in DND that doesnt use the overpower chair will have to come with answers as to why they dont use it
That chair was made for people with no imagination