We're not even discussing aggressively optimized C vs web stack. We're talking about a massive segment of today's software developers not even bothering to learn competent C (or Obj-C, Swift, Java, whatever) to build a native application. Hell, it's about the very practice of calling Electron apps native to begin with. The same thing continues to hold across web stack everywhere—reach only for those things that don't require you to learn a new language/paradigm, letting you keep churning out the same thing you build in a browser and call it native for platform X, and let it be on the user to pony up the resources to use it.

hm... performance metrics, possibly? it may be hard to measure.