I guess it comes down to whether AI should have the same rights as humans, or rather those of a tool.
The idea is not to stop making diffusion art, but to limit it a little, so the tool cannot be used to shamelessly copy a distinctive artists style without consent. Similar limitations would also be healthy for other disciplines, except perhaps those which generally are not considered hobbies or recreation.
And you are right about relevancy to the post, though I think it's good to talk about this as it is a technology which soon will fill a considerable amount of our lives, and the instance kinda focuses on it.