I just can't get over how the Nightsisters are explicitly evil but we're supposed to feel bad that Grievous killed them off.
That isn't the only case. The same thing happened with Death Watch and Bo-Katan. All of a sudden, they're the good guys now.
Yeah, sure, let's forget the fact that Bo-Katan joined a terrorist cult that tried to kill her sister, and that she participated in their blowtorching of an innocent village as if she and Pre Vizsla were Waffen-SS officers bumping into a Warsaw Ghetto.
Really, the Republic's reaction to Bo-Katan showing up on board Kenobi's warship should've been to arrest her on the spot. The Coruscant Guard should've showed up and arrested her, and Commander Fox should use R2's footage of Bo and her mates burning that village down so that Tarkin would have an excuse to make her disappear, only for Kenobi to speak up in her defense because she rescued him. Then when Bo says something about getting rid of Maul, Palpatine seizes on the opportunity, gives her a pardon, an army, and sends Ahsoka with her for support. There. My logical re-creation of that scenario. And I came up with it in two minutes.
Not to mention the fact that Bo-Katan also turned against the very same Mandalorian tradition that she betrayed her sister Satine for. She acts like Maul took illegal control over Mandalore, even though Maul won the trial by combat fairly, yet Bo-Katan didn't abide by the legal terms of the duel.
Yet Dave basically made Bo-Katan a pure heroine with no guilt over her past actions, and the Death Watch's most fervent adherents were suddenly made into good guys, too. Instead of being the Space Wahhabists that they were originally under Lucas.
I'm not saying groups can't change, but at least throw us a bone here. At this point, the fact that Mandalore quickly joined Death Watch and switched sides from Satine, to Pre Vizsla, then to Maul, really shows me that the place must be just one glorified banana republic where they don't care who's in charge so long as they keep the lights on.
Which obviously, didn't work out so well.