Otherwise known as the episode that made Anime Twitter yell about Urobuchi for the first time since Madoka Magica. A/N: Spoilers for the entire series are in this post.
Despite making my Top 12, Gargantia had more than a few problems narrative-wise. It dropped character arcs all over the place while still expecting the viewer to care about them, went off on random tangents that didn't pay off in the main plot, and framed its final showdown in black-and-white decision where the "right" answer was obvious. The reveal that the Hideauze were once human is also one of the more criticized points in the series, with people claiming that it was thrown in for shock value.
I'm not going to claim that it was "deep," but I did like how it finally shook Ledo's convictions. When he discovers the truth, he's in a situation of his own making; he's warned repeatedly to leave them alone and told that they don't bother anyone unless provoked. One of the tenser moments in the show is when a whole school of them pass by the ship while Ledo is convinced that they're going to attack. And nothing happens. Yet, that's still not good enough for him to let go of the hatred that's been drilled into him since birth. Even before the reveal, the carnage is pretty bad. Ledo destroys a nest of eggs simply because he's convinced that they'll be a threat someday.
|Totally not foreshadowing|
|Good luck with that mental trauma, Ledo|