I think it's like what I said to Alex. What makes Changeling so fascinating is that their mysteriousness and ambiguity allows them to be whatever the story requires of them: they can be a bee hive, a barbaric nomadic horde like the Huns, or a cultured civilization. So maybe not going to deep into that in the show would be okay, given how some canon new information ends up nuking a lot of these theories and fanfics, say like showing Rainbow Dash's dad in Games Ponies Play; some cheered, whilst hundreds of orphan Dash fanfics suddenly all cried out in terror... and then silenced.
Well, I've actually compiled an essay (if you can call it that) here on DeviantArt to argue my case. Check it out if you have the time:
magicman001.deviantart.com/art…