This is the kind of article where I find the content interesting but the premise broken.
Why can't people be developers AND writers? Vi Hart who was part of the Parable of the Polygons for example, is a writer by trade so it's not even internally correct (she does a really good video blog). Seems to me part of the "developing/computers is this special skill noone else has". Also lots of the things it suggests can be done with no code: for example, using something like Tableux to make an interactive data vis. It draws a really weird line.
Anyway. Just find it curious that people feel the need to box people so much. I'm a researcher but I wouldn't say "I'm a researcher, not a writer". All these skills are useful in combination and give different opportunities. People don't wear one hat.
Kim