I'm now not sure where I am on the Meet Prople Where They Are vs. Providing Content That Makes Twitter Compelling to People continuum.
Twitter is a corporate entity that is motivated by whatever causes the most engagement, whether it's Nazis harassing people or Trump stoking outrage to push them toward fascism. Putting art on Twitter gives people on Twitter to experience art, but it also promotes Twitter and that the idea that it should be fed for the sake of things like this.
On the other hand, not everyone can leave Twitter. Some people can't contact people in other ways. These are the cherished network effects that VC-funded tech companies fight so hard for.