Exactly. Its evident in us as well, our appendixes are all but useless now; because we no longer live on a diet of plant material. And because of that over the last 1000 years our bodies have disabled its functionality, and its a mere waste of space now. Id say we're in the middle of evolving to remove it completely from our bodies, give us another 500 years or more (omg what? Yea sorry you don't just sprout adaptations and mutations in 10 seconds) and everyone will be naturally born without them.