This avoids classification of the reader. To refer to someone who lacks the knowledge of a domain, they are a “layman”.
https://dictionary.cambridge.org/dictionary/english/layperso...
someone who is not an expert in or does not have a detailed knowledge of a particular subject
"bluffer" would be a humorous alternative.
Non-technical = not technical = does not have technical expertise.
Seems pretty logical to me
I find it hard to call a data analyst (for example), who can be highly technical, as a non-technical person.