Although I only had the chance to review their personal websites or github profiles and then Many are not able to choose the right HTML elements, to explain

Although I only had the chance to review their personal websites or github profiles and then Many are not able to choose the right HTML elements, to explain why and how a clearfix works, or what ARIA roles are for, but they can use React and Angular. No kidding. They couldn't explain clearfix because you never asked them any questions. You want to talk about incompetence, and your "application review" consists of browsing the web.