You have use the materials that are put in stone Setting, events, etc. Fans dislike when the Fan-made story or stories or content creators uses the same elements again, again but don’t think thenselfs there is not endless amount idea’s when are keeping the story cannon, stick with the characters personality, universe that live in. There is all-way people want someone change up the formula but at the same-time people are annoyed that is not the same old things.
My point-view: I don’t really care about and the reason because: I know making content is challenging time to time. Those people maybe said there opinion but more like turn back away from fandom. Being too critical, being too negative never helps in my book.