I’m a scientist, and “Not a real programming language” gives me big vibes of arguing that a thing is a science
CSS is not a programming language. Neither is HTML.
This, however does not take away from its importance or the skillsets and expertise required to use it effectively.
What a weird belief: thinking the value they bring to a project is tied to whether they use programming languages or not. The majority of people working with programming languages are already bad at it. Why is it being used as a badge of honor?