I agree with your point of view, there are so many AI projects but none of them are outstanding. in fact, AI is just a marketing trick to attract people in the cryptocurrency space,
From 2017 until now, I have never seen a AI project successful. They attract a lot of investors because their ideas are great, but to implement them is not really easy.
No AI project is currently successful, you are right, and no one has developed an AI project in the crypto world, including using the Blockchain in it, be careful if you invest in ICO like that