Sith having their own twisted, lesser form of immortality makes sense on paper, but having it in the form of fucked up techno necromancy (like the clones from the Dark Empire EU or even Cyber Zombie Sheev here) is where it should stay, imho.
Giving an actual spiritual component that involves killing the master feels wrong because a) it comes off as an unnecessary "explanation" for why the Emperor wanted Like to give into violence and hatred in the throne room, and b) it raises too many questions about why this has never come up before in any canonical stories despite it being so essential to the Sith succession.
Regarding a), the Emperor wanted to break Luke's conviction in not fighting and killing his own father despite both the Jedi and the Emperor believing it to be inevitable. He wanted to shatter Luke's seeming arrogance about pacifism by taunting him into attacking a "helpless unarmed old man" out of fear and desperation. Even if the Emperor would actually have been happy with Luke striking him down (and that's a major assumption), that could still be thematically consistent: the good guy "wins" but is corrupted because they learn that the path to victory and power is giving into anger and violence, meaning the Dark Side truly wins in the end. The Emperor's taunting works as a thematic bookend on the story of Luke learning what it means to be a Jedi: a badass warrior with a laser sword, or a wise man whose feelings and trust in the Force leads him down the right path. Transforming that into a literal plot device where Sidious was trying to trick the hero into a magical soul transfer technique cheapens it. It's like if they suddenly revealed that Obi-Wan's "more powerful than you could ever imagine" line actually meant that a Force Ghost being pure energy allows them to shoot lightsaber beams out of their hands.