LOLOLOLOLOL you paid for the game and what the whole thing unlocked for you???? What are you? A game journalist? Is this the dark souls of park builders for you?
But in all seriousness, paying for a game does not mean you instantly get access to all the features or perks. Sometimes, you have to play the game to get rewarded. I was able to 100% everything with a little planning and looking up tips and tricks to get past Jurassic Challenges, but even then, I only unlocked everything by thoroughly playing the game. Much like you didn't unlock secret characters till you beat a game on a certain difficulty. This is standard gaming and if that's not for you, then not sure what to tell you. You're basically asking to have all levels unlocked for Super Mario Brothers without playing any of it seriously simply cause you bought it. It's a game, games are challenges to overcome (preferably having fun while at it).