It's not flawed. You're supposed to be able to get to that area of the game early if you want to kill Pinwheel or get other goodies. The game's supposed to be less linear than other games, even if it does have a bit of linearity to it. 

Unless you're being not serious, in which case I can give you the super secret answer that I shouldn't tell you: it's so you can get your Mask of the Tryhard early like a pro.