You are restricted to consume content only from your server. A video player or just any data parser/interpreter is less useful if it runs only CORS-enables(and

You are restricted to consume content only from your server. A video player or just any data parser/interpreter is less useful if it runs only CORS-enables(and public) urls. Imagine cURL working only with CORS urls! Lol! PWAs value the site owner's "restrictions" more than the needs of the user. It's basically a kind of DRM so I believe PWAs are doomed to die unless they put the user in charge.