I find that the vast majority of assessments like this are rooted in the mistaken belief that there are common, well-understood, and widely shared meanings for words like "simple" and "complex".

The post isn't observing a lack of desire for simplicity, they're observing a very common case where people evaluate "simple" relative to their own familiarity with tools or techniques rather than a comparison of perceiver-independent properties of the tools and techniques vs their alternatives.