I agree that formal training and teaching with a quality provider is likely to be optimal but any tool that adds to the available options for training is worth exploring, especially if somebody already has access to the platform the software is available for - paid instruction is not always an option for many.
We also need to be careful not to gatekeep music by demanding instrument players go a formal route of instruction.
You may want to look to Sight reading factory. They do a pretty good job allowing you to dynamically generate unlimited sheet music according to your pianistic capability.
My teacher literally would spend one hour with me on one page of sheet music to ensure I can play the notes evenly with the correct dynamics. He could hear the tiniest hesitation I have, and then come up with specific methods to help me practice that part. That is why I don't think any of such software, AI or not, actually knows how to teach piano, and I doubt they ever will.
Also, multimodal LLMs are improving so quickly that I wouldn't be that surprised if they were able to do what you're describing in a couple of years. But they are definitely not there yet.
Source: many family members who are music teachers, spanning multiple generations and a wide range of technical prowess.
I grant that if you can afford a full size piano, you probably don't balk at this thing, though.