A person has an interpretation from a literary/art criticism point of view. They're not demanding everyone agrees, it's an opinion they are entitled to have and you are entitled to disagree with it find downright silly if you want.
It's like when someone did a play about Joan of Arc being trans and the whole of the media was up in arms that this constituted the writer/ director demanding the whole world recognise Joan as trans rather than the fact people use art to explore ideas, which is pretty well understood thing.