I went and read the wikipedia entry for FF5 and it says the meteorites are used by people of the second world, where the big bad and the second set of crystals are, to travel to the first world, where the protagonist starts out. After failing to protect the crystals on the the first world, they travel to the second one. Thematically there's probably also a connection between space as a void and the big bad having been sealed into something called "the void" by the original division of the two worlds and set of four crystals.
I have to confess I don't like the storytelling style/structure of Game of Thrones, or the Malazon series which is the same kind of thing. They just seem like a sadistic soap opera to me, no offense intended. I'd argue that those stories which aren't about individual characters but instead about some great upheaval in a large setting are inherently epic, and I'm just not a fan of epic. It's probably connected to the issue of plot-driven writing rather than character-driven writing. IMO a good story is both but the characters should be where everything begins and ends because they are what I really care about (and I imagine that many readers feel the same way, though not all). And what the audience is supposed to care about is how you determine where to start and end your story - you start it where some character (generally either the antagonist or the protagonist) has a strong desire to do something, and you end it when that desire (or what it has morphed into over the course of the story) is satisfied or exhausted/destroyed.
Actually GoT is totally character driven. All the events are derived from the characters actions. Because a character does this or feels this way such and such happens.
I think maybe you really enjoy stories with a single protagonist or group of protagonists who are allied are unambiguously the good guy and focus of the story.
GoT and BotF both focus on complex stories where there are both varying levels of bad guys existing at the same time and complex characters who often have done and continue to do terrible things.
For instance I am a huge fan of Valdemar but its hard to argue for any shades of grey. Malazan stories are just more complex and interesting. Valdemar can even be epic, but its cut and dried. Its a fantasy world, where fantasy is used in the most positive sense. Malazan is a fantastic world but its not really a fantasy world. Each of the nations has a story that is just as complex as the story of the USA which is a country that has done many good things, especially for its own citizens, and for allies who are basically parts of the global north whole, but which has done terrible, terrible things also to people who disagree with its guiding ideas, and no, I didn't misspell ideals and to countries who have no way to respond.
Those series are not SADISTIC. They are REALISTIC.