I definitely had thoughts about how to expand the Els, and things that could be done with them, but game jams be short. Especially stuff to show they're different people despite it all too; it's not really addressed here, but the way Kali just ends up calling them "El" in-universe like they're interchangeable is definitely a character flaw, haha. As they are, they work as a symbol for the story, but other then Raphael and maybe Gabriel they're mostly pretty basic.
I might've undercut it with some humor, but I think you hit the nail on the head with my implementation! Stuff about how, despite only being there a short time, Kali is still being affected by the places he visits and carrying them forward with him, and passing them onto others around him. The story 'sucking' is mostly because Kali isn't used to the role of storytelling, but it's meant to show his earnestness in sharing this story is the part that's important and meaningful, the connection you feel through the story being more important than the story itself. Twas my thought with it at least.