I think this is my favorite kind of Worldbuilding to do because while the article itself is about the language, it's actually more about Innalech and how he approaches problems and/or gets mired in their complexity. He loves language because if he can find the right words to express something it's like solving a puzzle and he can see people comprehending what he's getting at or comprehend what they're saying. He can use it to clear up miscommunication (the worst!) and share ideas (exciting!) and he was so, so thrilled to be doing that so they could understand and be understood by an entirely different culture. And when it turned out one of the most effective communicators he knew was using those skills to lie to and manipulate even the people closest to him, he basically had a crisis of faith. The most he could do was to keep working, but he did it to say we never wanted this to happen and so no one could ever claim the words weren't there to talk instead of waging war. And then he went on to trap himself by mistrusting his ability to understand anything at all.
I guess this is how I am as an audience, too--I have only so much brain capacity for World Facts but if I can connect them to a character or theme or plot thing I'm interested in I will have total recall of the most random shit. Every time I start to think like..."ugh if I don't figure out how the biome of this place makes sense someone is going to realize I didn't think about it" I remember if my eyes are glazing over thinking about writing it probably it's not that important, and when I'm thinking no one is going to give a fuck about something I want to write, I remember I'm only interested in writing it because it does tie in meaningfully somehow.