I’d of much rather they kept going with the subversion elements of Last Jedi then try and over correct into a fan-serviey mess of old characters and unexplainable power.
@Zincy
It was also trying to rip-off the Dark Empire comics, which is annoying since TLJ criticized the EU with its obsession with bloodlines and letting go of parts of the past, something that bring back Palpatine goes against. I rather that it was an imposter, like a droid fix on a throne using lighting and what not while its master watches until Ren scares it and causes it to try to weasel its way out of his wraith.