Count me with the people who's sadly kind of disappointed with this season. Regardless of how much is being set up for S6, it just feels so lifeless.
I was fine with the first three episodes being setup, and the events of the fourth one should have had MASSIVE repercussions, but it just feels like it wasn't that big of a deal, aside from Avasarala's plotline. We actually see her dealing with the loss of her husband and scrambling around in the political aftermath.
Amos' storyline has had a little bit of the first-hand aftermath of the meteor strikes, but seeing as we never really saw THAT much of what earth was like beforehand, we don't have much to compare it to. We saw Holden's family farmland, which was always kind of presented as an unusual situation, and we also saw Bobbie dealing with the homeless people in S2 when she escaped from the embassy, but otherwise, all we ever hear is how much it sucks on Earth, so we never really get to see how much worse it got after the attacks, except for Baltimore. For example, did that guy who had the standoff with Amos in "Tribes" have that land fenced off before the meteors fell, or did he do that afterwards? From what we know of life on Earth, it could go either way.
What does the average Martian think of what's going on? Apparently Marco also attacked the martian Parliament at the same time, so you'd think that the citizens would, if nothing else, be all for teaming up with the UN to take him down.
And more than anything else, what do the belters think about what's going on? In past seasons, we always got scenes on Ceres or Tycho to show what they were rioting over or who they were celebrating, but we've had nothing this season. As far as I understood it, Fred Johnson was pretty well-liked amongst his faction. Sure, he had his enemies, but I still always got the impression he was right up there with Dawes as far as being respected by the belters went. What do the belters think about the fact that Marco had him killed?
On top of that, Marco keeps going around acting like blowing up the Rocinante will endear other belters to his cause, which seems like kind of a dumb plan. Holden seems to be VERY popular with the belters. He got a heroes welcome after they attacked Thoth station, he almost single-handedly resolved the whole situation in the ring space in S3, and he also helped resolve the situation on Illus in a way that ended up extremely favorable for the settlers. Even this season, we see him getting the "beratna!" toast from random belters in a bar, so I can't imagine that his death would go over well. Sure, at first he was planning on making it look like a drive malfunction (which might have still made a martyr of him), but now he's just planning on straight-up attacking him. At this point, it just feels like he's attacking the Rocinante because it's what the bad guy does: attack the "heroes".