NFT art is a type of digital art that is sold or traded as an NFT. It can take many forms, including static images, animations, and even interactive experiences
In my opinion, it depends on how the NFT project advertises itself. If the project promises to have a long-term plan then they should deliver (or at least try).
But, when the project is clear that it's all about the art not utility from the beginning then I find no issue with it.