The people who "protected" the page are site admins. To become an admin, the community votes you in. Anybody can request adminship. Everybody with a WP account can vote in the RfA.
Have you ever read a WP RfA? From the way you wrote this comment, I'm guessing you haven't. Wikipedia adminship is cliquish and obnoxious, but the process is relatively rigorous; WP users read through entire multi-year edit histories, dredging up "controversies" for public debate. If there's a cabal, it's an organic one.
Moreover, admins don't singlehandledly delete and protect pages. This page was "protected" because normal WP users effectively deleted it (replacing it with a redirect). There was a discussion about whether to do that, in which anyone with an interest in the article could have participated. There was a procedural shortcut here (since the page was redirected instead of deleted), but there was a procedure, and it was an open and transparent one.
At any step along the way from creation to protection, decisions could have been appealed to yet another open, transparent forum, where Fravia's proponents could have debated ad nauseum why WP needed an article about him. They have plenty of opportunities to present evidence for his notability and inclusion.
Pages get "protected" when people ignore those opportunities and procedures, and undo the work that the WP "fulltimers" do to maintain the encyclopedia.
Your comment is a caricature of what actually happens on WP. It also ignores the reality of a massive living document, exposed to the public at large in the top of most Google results and routinely highlighted in the mainstream media. If preventing an article from showcasing Fravia was a mistake, 1000 other cases this week of people attempting to SEO their products or write pages about their girlfriends weren't.