As a working scientist - this is so true!!! The most successful scientists have to be good at science, but they also need to be good managers of the people in their lab, good colleagues of their peers and above all else(!) be able to write first-draft in the preferred style of a wide variety of outlets - grants, journals, technical reports, books etc. It’s a write & publish or perish world for STEM people and a scientist who can’t write has limited career prospects.