This is purely speculation from the raptor scene, but here's my theory on what I think is going down. They reopen the park and have found a way to "tame" the dinosaurs into a sort of obedience trait through genetics or whatever floats your scifi boat. Then they decided they could splice DNA and create even a cooler dino…
cheap, no trespasser had you running from dinos, and dinos are scary so you would feel something playing it. This game is supposed to make kids wish they were watching paint dry insted of playing it. That or be grinding the bunnions off their grandmothers sweety feet.