> If writing is not particularly part of the work, don't worry about it.
I suspect the author is (perhaps unknowingly) using his grammar test as a proxy for general IQ. General IQ correlates _very_ well with performance across a broad spectrum of tasks. (The notion that there are different IQs for different areas of life, though sentimentally appealing, doesn't correspond to reality.) It's no surprise, then, that someone with a high IQ (as measured by this proxy) would do well in a position that requires solving other complex problems, even if these problems have nothing to do with writing per se.
I suspect the author is (perhaps unknowingly) using his grammar test as a proxy for general IQ. General IQ correlates _very_ well with performance across a broad spectrum of tasks. (The notion that there are different IQs for different areas of life, though sentimentally appealing, doesn't correspond to reality.) It's no surprise, then, that someone with a high IQ (as measured by this proxy) would do well in a position that requires solving other complex problems, even if these problems have nothing to do with writing per se.