The only way to explain Palpatine's utter stupidity in TROS is that he went senile after ROTJ.Everything involving Palpatine in this movie makes zero sense. None whatsoever! I'm not being hyperbolic here; every scenario that I can remember falls apart upon trying to make any sense of it.
He's an idiot right from the opening crawl. The crawl says that he broadcast a message across the galaxy to let people know he's back. Apart from wondering *how* that would even be possible, the bigger question is: why!? What purpose does it serve? If you've got a secret Sith Fleet, why would you want to alert people to its presence before the Fleet has had a chance to navigate out of Exogol? And why would you risk the transmission being traced back to its source before you're ready to execute your plan?
Which brings up the question of why he would leave the possibility of his Fleet being sitting ducks by having them all rely on *one* central navigation signal to even get out of there.
And that in itself makes no sense because navigating out of Exogol is something that ships clearly must've been doing all along to go recruit staff and procure supplies from around the galaxy.
Every nonsense plot point just leads to another logic hole, which in turn leads to another one. It was a 2+ hour exercise in plot conveniences that all fall apart without even needing to apply much scrutiny, and the Palpatine parts are probably the most illogical of all. They brought him back without explanation, and compounded it by not bothering to provide a logical foundation for anything that happens which involves him.
And you made a great point in an earlier post about the Knights of Ren immediately attacking Ben Solo when he gets back (magically) to Exogol. Did they know he was no longer on their side just because he was wearing a different shirt?
Wait, they didnt know, WE knew from the crawl, they found out because Hux told them.....
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'coz he could've just done the "go into exile become antihero trope" but at least there was a chance to see a multilayered character in a future film. Tho no-one stays dead anyway so whatever.
Spoiler: 
