I swear to god you don't even pay attention to the majority of the episodes' actual content.
Let's talk about Falmuth. Their leadership are full of evil fucks who summon children from other worlds and steal their unique skills through human sacrifice. Humans born in this world do not have unique skills. Otherworlders do. That's a large part of the whole reason Rimuru is so OP, he came over with THREE, including the most broken of those three: Wise One -> Great Sage -> Raphael.
The knight douchebag had one, he was going to use it to gather all the remaining soldiers and use them ashuman shieldssacrificial pawns so the four leaders could escape. That means he's already killed some kids for theirs. Rimuru killed him before he could activate it.
The king and priest separately both tried to sell each other out to save their skins. The mage played dead and tried to sneak away. The king, up to the very moment that Rimuru tore his arm off, displayed arrogance that he could outsmart and outplay another nation's leader, and on top of that, was going to demand reparations for his own failed invasion as being "merciful."
The king even badmouthed the smaller nation that Rimuru had already made peace with. The one he had been embargoing to make them collapse. The one Rimuru set up a completely peaceful trade deal (and even drastically beneficial to them over Tempest) all the way back in episode 2 and 3. He was desperate to survive, and then remembered that Rimuru must be stupid for being happy that he had a trade deal with Blumund.
As a consolation: I am greatly disappointed they didn't cover the side chapter of the manga that occurs during Megiddo from the human POV.
You didn't miss anything. This is the first time we've seen these guys. You had the same reaction I did when reading the manga. They're not set up, properly, which is odd for this series, and come out of nowhere.
I do appreciate that some of the Harvest Festival did some balancing on Rimuru in exchange for other broken as fuck powers.
- Raphael is Great Sage, powered up and physically able to manifest. She's voiced by the same VA that's been doing Great Sage this whole time.
- Degenerate (Shizue's broken AF power to split and recombine portions of skills into new skills) is gone to upgrade Great Sage. Which failed to upgrade without the sacrifice an infinite number of times as graphically depicted.
- Merciless is gone as soon as it came, to upgrade Gluttony to the magicule-devouring void power used in the resurrections.
- Rimuru is likely now immune or at least drastically resistance to Hinata's equally OP soul-slaying bullshit
- He summoned three higher-level demons, and now two are annihilated to power up the resurrections.