There shouldn’t be a deepfake of Palpatine’s son onto one of the clones in the tube (that would shoehorn in the retcon from the book that Rey’s father was a clone which undermines Palps’ goals from the actual film); the point is that Palpatine decided to have s%# and create offspring because he knew he could possess the body of a Force-sensitive without said body suffering in the way the clone body he is possessing already is, it’s why he was after Rey and then Ben Solo, neither Rey nor Ben were clones.