Because we're aiming for AGI

$$$$$

We wouldn't be humans if we did that.

Or artists, for that matter.

Or particularly good scientists, unless blindly (over)fitting models is what constitutes science.

It doesn't work like that, not with text. If you make a text model smart enough it will be able to generate whatever you want.

With images we could ban models that generate drawings. But then, I'd argue that one creative group (painters) are trying to ban another creative group (programmers) from doing their art. Both painters and programmers should be free to create whatever they wish, unless there is a clear, unquestionable, harm to the society as a whole (not just another workgroup) from their creations.

Maybe because machine art encourages humans to think more laterally? Have you seen how tired art has become? It's mostly a cynical scheme to make or launder money. AI can force artists to actually take risks to outdo the mediocrity of generic art.

Because art is less rigorous and therefore lower hanging fruit.

What else do you want to leave out? It is an endless list, and nobody out there will actually enforce it -- even if someone follows that voluntarily, another company is going to ignore it.