Their advice isn't "just add a compiler, bruh". Their advice is to see how far you can get solving your problem with ordinary code, then add the most limited AI on top necessary to finish solving the problem.
Their product is a tool to automatically translate a Figma design file to React code. So the ordinary code to solve the problem is a compiler. They're not telling everyone to write a compiler.
Your general criticism of adding compilers doesn't make sense in this context. Their alternative would be using ChatGPT as a compiler, and they convincingly argue that'd be worse. Or are you arguing that it's bad to offer a product that generates react code?
Their product is a tool to automatically translate a Figma design file to React code. So the ordinary code to solve the problem is a compiler. They're not telling everyone to write a compiler.
Your general criticism of adding compilers doesn't make sense in this context. Their alternative would be using ChatGPT as a compiler, and they convincingly argue that'd be worse. Or are you arguing that it's bad to offer a product that generates react code?