I wonder how much grant money they wasted to state the obvious? A thought exercise with some elementary probability would yield the same conclusion.
The same thought crossed my mind. They're really not saying anything more profound than Richard Dawkins's "selfish gene" model, which has been around forever. Still the foundation of science is independent repeatability, and if they experimentally verify a "selfish gene" model playing out in real life, then, well, that's far from the worst expenditure of grant money I've ever heard of.