To a non-developer, every application they read might as well be a list of buzzwords. They cannot comprehend a word of it. Web stacks offer the opportunity to list more and newer buzzwords. Do I set up an interview with the person who lists "C systems programmer" or with the person who is a "full stack React, Tailwind, Next.js, Node.js, Electron, Docker, Kubernetes, AWS engineer seasoned in Javascript, Typescript, HTML, and CSS"? Well, the latter certainly sounds 10x more impressive. Into the trashbin the systems programmer application goes, they just don't have enough skills for an enterprise of our scale!

Because they lack any better signals from within the company. At several places I have worked, hiring is almost fully detached from the groups that need the workers. They never could find good candidates for our teams. This kind of disconnect is what corporate cancer looks like, and it is endemic in big business.