Star Wars: The Acolyte official trailer

[Mechalich]

That entire arc is really just hammering in that the Empire is already here and Palpatine has basically already won.

He's almost won at that point, though it's an extension of the wins he's been accruing since before TPM. However, the way the Force influences conflicts in Star Wars makes things tricky. In Star Wars, no lead is ever safe. You can be up 50 with 30 seconds left and still somehow lose. Worse, when it comes to light/dark conflicts, this is almost inherent to the game: the dark side always takes the early lead, but as the situation grows more and more desperate the light rallies and pulls a massive win seemingly from nowhere on the final play.

Palpatine, of course, knows this. It's the fundamental insight of the entire Banite Sith scheme. He knows he absolutely must maintain cover until the very end, because he only gets one strike in the open before the scales fall from the eyes of the Jedi Order and he's stuck fighting an intergalactic war with whatever remains and all their allies that, no matter how many advantages it seems like he has, he will lose. Doubtless he has foreseen such outcomes as well, countless times, always taking the necessary steps to avoid them.

Anakin is the fulcrum upon which this lever of the Force bends. His choice, at the pivotal moment, decides whether or not the Jedi survive to fight on - remember, even if Mace kills Palpatine, a huge chunk of the galaxy still turns against the Jedi for launching a coup against their beloved leader - or whether they are exterminated. And Anakin makes that choice knowing full well what the costs will be - he bets the freedom of the whole galaxy and the lives of basically everyone he knows against the life of his wife and unborn children (of course he loses them both anyway, but that's the nature of the dark side).

Insofar as the Jedi Order of the PT is flawed it is that they both produced an individual capable of making that choice and that they placed him in a position where he was able to make it at all. Some of that is highly individualized to Anakin's specific personality and doesn't generalize to the rest of the Order at all. Some of it is structural factors that does. The 'no attachments' rule is part of this. Not that it would have changed Anakin's choices: even if he'd been allowed to have his relationship with Padme publicly known without objection, he still would have sacrificed the galaxy for her and his kids, but it would have allowed the Jedi Order to manage his deployments better and avoid conflicts of interest if the relationship had not been clandestine.