Your hammer and nail analogy is cute, but it’s far from being the same.
The HTML/CSS/jQuery sections were more than enough by presenting you with all the tools and methods needed to build a nice shed in your backyard, kinda like the Tribute page. The first project isn’t exactly a complicated web application. Just a static page. Like others have mentioned, this is a “read, search and ask” website. There are countless others resources elsewhere that will spoonfeed you anything you need to know. FCC is different, and it seems to be working for thousands of people around the globe.
Having said that, a new and improved version of FCC is in the works.
Check it out. You can try all the challenges, but beware that nothing will be saved.