You don't have to "rely" on it just like you don't have the rely on `fmt.Println()` in golang for debugging.

A language/runtime/framework gives you options and you pick your poison, browsers offer you step by step debuggers and REPL out of the box and I actually think it's awesome in terms of debugging, you can of course only use console.log(), and it's a good place to start. When you're ready to move on there are many more useful tabs in the browser devtools to debug with.