Dude, I am also an adult here and I think you are overthinking things. This game is simply a fan game of Baldi's Basics because he loved the game so much that he wanted to create something inspired by it but also credit the game inside the game itself. This game isn't receiving any money and neither is Baldi's Basics, so there is nothing wrong with this game. It's incredibly scary and fun at times. As far as I know, this game is not for a Game Jam but Baldi's Basics is/was.
I do kinda understand where you're coming from but think of the game and the developer about why he made this game. Criticism is always helpful but when you write it in that way, like you have, it's not much help to anyone, honestly.
I am only expressing my opinion on this.