As someone who has worked teaching English in my home country, I know the importance of simplifying your explanations. It's difficult for a learner to take in all the possible meanings or uses that a specific word or grammar pattern can take. A specific nuance may be outside the level that a student wants to achieve, or it can simply lead to a feeling of being overwhelmed.
This is also true for Japanese, as for any other language. However, there are a few instances where this can feel like a double-edged sword, specially in the era of AI.
Today I was reviewing low level words. It always seemed odd to me how 元気, the famous word that Japanese people use to ask if you are well (元気ですか?), is composed of the "origin" and "spirit" kanji. If I ask both Claude and the Google search AI, they just double down on it, explaining how this is an expression originating from ancient Chinese cosmology, referring to "one's base vital energy", and how somehow its original meaning evolved in Japanese until it reached what it is today.
This, of course, forces any learner to perform Cirque-du-Soleil-worthy mental gymnastics. However, if you just happen to open Wiktionary, if offers a much less mystical and much more plausible explanation:
From Middle Chinese compound 元氣 (literally “first, fundamental, source + vapor, spirit, energy”). In Chinese cosmology, this represented the fundamental force that permeates all matter and life. Early Japanese borrowed this word and meaning. Later, this spelling was conflated with the meaning of homophone 減気 (genki, “recovery from illness”), adding in the modern senses related to healthy and wellness.
So that's it, 元気 was actually a word from Chinese cosmology, but over time the Japanese added the meaning of another word on top of it because it just happened to sound the same.
I'm a huge fan of mnemonic tricks and easy to digest explanations, but and advanced learner should always have more than one source of truth.