What if we were descended from swimming apes, rather than from hunting apes?

Desmond Morris discussed the swimming ape idea in his book The Naked Ape, and also in his television show The Human Animal. Here is a link to the clip, if you are interested. Wikipedia says that the Aquatic Ape Hypothesis “has received little serious attention or acceptance from mainstream paleoanthropologists, has been met with significant skepticism and is not considered a strong scientific hypothesis.” But what if it were true that we went through a swimming phase and did not go on to become hunting apes? What physical or cultural differences might we manifest today?