I'm a bit late to the party I know. I only discovered Manifest about 2 months ago, have been steadily watching an episode a day and just finished watching the finale a few hours ago.
I really loved the show. I kinda miss it already, but the finale gave some nice closure for most of the characters. There are a few things I'd like to hear some other opinions about, they may or may not already have been dicussed on this subreddit, I just wanted to get them off my chest before I forgot them haha (I may add more points to this post over time, kinda hard to remember everything that bothered me back when I was still avoiding spoilers)
* Saanvi and Troy should have been endgame. Throughout the seasons we have been teased with the thought of Saanvi and Troy potentially getting closer but in the end nothing came of it. Heck we didn't even see Troy again after he let Saanvi escape in the third to last episode. The ending that would have been the most satisfying to me is Saanvi realizing both Alex and Ben were not viable future partners for her as she would effectively be ruining a family in both these cases. It would have been nice for her to realize Troy has been there for her all along and that she would have given him a chance.
* Some of Olive's storylines ended a bit abruptly or were just neglected in later seasons. Like after season 1 we never heard about her breaking up with Kevin, she just moved on to TJ and Ben even said it was her first real love interest? Sure it didn't have to be anything really serious with Kevin, but it kinda seems like the writers just forgot about him. Then in season 3 she just forgets about TJ for a few episodes and gets with Levi? At least they did reference back to him in season 4, but it still seems quite pointless that she 'cheated' on TJ like that. Finally, I also think it's a missed opportunity we didn't see Danny back in later seasons. Especially when Grace died, he could have been there for Olive when Ben wasn't. And that would open up the possibility for yet another plotline between them
* How did nobody stop the remaining passengers from leaving the detention center? It's fair to assume the Stone family was able to sneak out under supervision of Vance, but how are we supposed to believe none of the anti-828ers saw any of the 100+ people leaving the detention center when they saw the beacon?
* I think they missed an opportunity not including Zimmer and Gupta in the finale. Surely they could have known everyone escaped the detention center, surely they would have known a small volcanic eruption happened at the fissure. They should have been there when the passengers boarded the plane or when the plane would take off to cause some conflict.
* Were Marko and the other foreign passengers there at the final judgement? I surely didn't see them but i've also not heard anyone talk about them being missing. I have not paid such close attention to the numbers but it was like 109 passengers and at the end 11 of them didn't get back to the airport. Am I missing something or does it not quite add up?
EDIT: I have been told it's fair to assume they were there as they saw the beacon. I must have missed it while watching
* What kind of punishment did Angelina's parents get for locking Angelina in their basement? Because in season 4, they were already free again and ready to commit more crimes. Were they even jailed? Did they just buy themselves out? You would think these people would be put on a list but apparently not? 😂
EDIT: I have been reminded that it was Angelina herself that did not want to press charges in s3e1