why wasnt it made clear Palpatine was a clone?
have Kylo or Luke or even the Emperor reveal hes a clone and that his son was a rogue clone who was good that he hunted down and killed so rey is the product of being the rogue/good/failed clones daughter..(could've done a big reveal showing a CG deaged Ian McDiarmid as Reys father in the flashback)
Huge twist in the movie that wouldve explained loads of stuff. and also ties back to Attack of the 'Clones' and the 'Clone' Wars etc
instead that stuff was only hinted at, if that (and revealed later in the novel).. its like they didn't want to say hes a clone for sure because they felt it might be too silly or didn't want to draw strong connections to the reviled AOTC or wanted some JJ 'mystery box' or something so best leave it that ok he might be a clone but also he might've just come back to life after being destroyed at the end of Jedi.. somehow..