Ah... another sociologist?
Now, whether or not there's a "social" right or "natural" right for anyone to create and claim some sort of part or "ownership" over a story or not, falls in a vastly different category than whether or not there's a legal right.
it's still not canon
enjoy Edited by T3CHN0Shamanit might be your canon, but that's only relevant to you and perhaps your players. If that's all that matter, then there's no point discussing it, no one can prevent you from doing that, whereas Disney and LF can scratch all of that literary faecal flotsam and replace it with something else.