If I’m already using React, why should I rewrite my app with Web Components?

Where Web Components shine is when your components need to go to many places. Components in a large company not only need to go to the React app, they also need to go to the Drupal site, the old Rails app, the internal Java app, the Vue app, or the static Eleventy site some intern built; the list goes on and on. Web Components offer a path to deliver components without delivering complex build toolchains, so they can more easily graft into situations where teams face a wide surface area of languages and frameworks whether through decades of decision making, mergers and acquisitions, or chasing the latest hotness.

Spot-on description of the technological challenges in enterprise.