That’s about consciousness, which is a much larger claim than the self being an illusion. You can have consciousness without a self, that’s what we call ego death. In theory, a conscious being could exist that’s always in a state of ego death, and have no understanding of the self and be utterly confused by why people find anything unintuitive about the teleporter paradox.
The inherent flaw is that the dataset needs to be both extremely large and vetted for quality with an extremely high level of accuracy. That can’t realistically exist, and any technology that relies on something that can’t exist is by definition flawed.