No not really. It just says that variety is necessary for natural selection to operate. Recently it has been suggested that we have detected gravitational effects FROM OUTSIDE THE BOUNDaRY OF OUR UNIVERSE
You didn't read the article.
That said, there are other, powerful reasons for rejecting a multiverse. Finding conclusive evidence in support of the hypothesis seems highly unlikely; even its advocates admit as much. Worse, it is not clear a multiverse explains anything anyway – stating instead that everything is possible somewhere. If science routinely proceeded on that basis, it would have to conclude that God exists in some universes, following Richard Dawkins' reasoning that whilst God is highly unlikely, the possibility cannot be ruled out tout à fait. (That said, Dawkins' argument is itself flawed, because if God existed the deity would be a necessary not contingent being, and so not subject to the laws of probability.)