In my opinion it is definetly a logical consequence. Since it is proven that there are changes in the genetic material (and not only there btw) and because of those changes the species will die (faster) or have a better life.

I think there can't be any doubts at this point so far.
And that is evolution.
Of course if you believe in something non physical in cells or whatever which can't be changed you can't change one species into an other.
But i don't believe that something like this exists so evolution makes sense to me.