>>539175918
Furthermore we know that Fecto has powerful brainwashing powers and can control others with ease if they are in near contact with him. He was probably pulling the strings all along behind the scenes, controlling the actions of political leaders and guided everyone to leave so that he could have the planet to himself and recover Elfilin with ease. It doesn't make sense that he just laid there defenseless when he could brainwash people and cause havoc with portals even in his weakened state, so maybe he was actually directing and allowing things to happen as he saw fit.

Maybe he even set up the guided tour so that he could brainwash more people. Perhaps getting caught was part of his plan to begin with. Fecto mentions he had a plan that Kirby derailed, maybe his plan extended way farther into the past than expected.
Which also kinda explains why Genwel showed up only just now even when Fecto had been trapped for at least decades; Fecto was actually winning up until Kirby defeated Leongar.

So, assuming this is true, could it affect the story in a relevant way? Both Elfilis brothers are somewhat alive, with part of Fecto's essence surviving inside Elfilin, and Genwel just being sealed, so maybe we will see more of their story and motivations at some point. As for why the planet is so important that it is worth invading twice, even after it got mostly emptied, maybe there is some sort of secret hidden within it that we haven't seen yet, and what the brothers were truly after.