Admittedly, episode 7 as a standalone is, by Andor standards, just okay (which for Star Wars standards is still damn good). But episode 8 blew me away. The whole season has been percolating towards the Ghorman Massacre, which in effect seems to be the true powder keg that kicks off the Rebellion proper, and man was it just so well done. Episode 9 is a worthy follow up as well. Mon Mothma's speech was just beautifully written (though it might ruffle some feathers given the very real commentary on what is going on in the real world). It's kind of crazy to me how Lucas has three movies worth of making the Galactic Senate dull, and Gilroy effortlessly manages to make it so enthralling.
The one-two punch of the fascist regime dropping pretense and executing outright genocide to then Mon Mothma speaking out as the voice that starts the rebellion in proper form is such a cool bit of backstory from my view. The show as a whole has shown just enough to show that pre-Death Star, the Empire still had to operate within the bounds of some degree of public decency and decorum to avoid sparking a civil war. They don't just go in and take Ghorman, they need to steer public opinion to avoid outcry and revolt. In season 1 you see sham trials leading to false imprisonment and police state tactics of the ISB and imperial military, but the galaxy isn't in a total state of fascist control. Yet. That's where the Death Star ultimately comes in. It adds to how Princess Leia can get away with running her mouth at Vader and Tarkin with indignation in a New Home. It's not exactly new that the Death Star was meant as a deterrent and tool of intimidation to bend the planets of the Galaxy to the Empire's will but this show does show just how important that was to the Empire, that as controlling as the Empire was becoming, they still had to tip toe before taking certain actions. In its collective hubris, crossing the line on Ghorman ends up being a miscalculation that kicks off the Galactic Civil War and the eventual end of the Empire. No amount of propaganda was able to stop that chain reaction and it was all because the Empire decided it was time to stop being so careful.
And all of that is done so well that reserving the final 5 minutes on Bix breaking up with Cassian and K2SO being switched on almost feels...out of place? Like they're great moments too but after everything this arc focused on, it just felt like an odd way to end it. That would ultimately be my only complaint about the arc and episode 9. And it's not even a real complaint.
It's sad to think this show is almost over because I cannot imagine how anyone will manage to make anything as good or even close to as good as Episode 8 and the arc as a whole. It's been said before but this is easily the best thing to come out in the Disney Star Wars era and for my money it's the best Star Wars anything since the original trilogy. By a lot.
EDIT: Wait...I have another not-complaint. Because I just watched Rogue One recently, it is kind of amusing to me that while he hasn't aged badly, Andor is clearly older in this show than in Rogue One. He's a lot more baby faced in that movie. Can't be helped, but still funny. Genevieve O'Reilly, by comparison looks younger. Draven looks the same.
EDIT 2: As big a star wars fan as I am, I wasn't aware that the Ghorman Massacre and Mon Mothma's second speech were a part of Rebels because I never finished it. Thanks Twitter.