The point isn't that you can't reach the website by typing in the search term, the point is that they've deindexed the site. If you search for youtube-dl, neither youtube-dl.org nor yt-dl.org come up in the results, as far as I can see.
You can still access it from the results via other sites, like github and wikipedia (which even makes the real website pop up in the info square, funnily enough), but the search results themselves do not contain any links to the main website.
You can still access it from the results via other sites, like github and wikipedia (which even makes the real website pop up in the info square, funnily enough), but the search results themselves do not contain any links to the main website.