If Palpatine has a secret force lab then it’s fine for him to slowly come back to life in a tube. It’s just the way this material is handled and the lines he says that are so odd.
As far as I’m concerned it isn’t fine from a story perspective, since it becomes a story with zero stakes for the heroes, and the villains. The villains can die, and then magically come back. The heroes can be healed, or brought back to life just by being touched by a Force user, or alternatively become a ghost, that can now pretty much do anything a living person can. Armies and ships are pulled from nowhere. What happened to Palpatine slowly corrupting the galaxy to hand power over to him, but having to keep the Senate around, such that he can govern? What happened to rebellions that were slowly built up over decades in secret, until they had enough support to challenge the Imperial power structure? All that doesn’t matter anymore. Need an army to take over the universe? It’s waiting for you in the unknown regions. Need an armada for your rebellion, just have Lando take the Falcon for an afternoon, and he will get it sorted. It’s become a big joke now.