No problem at all. The problem here is that science does not make pronouncements that something is proven until the matter has been thoroughly examined, tested and discussed. Evolutionists constantly make half-assed claims with scant or no proof and call everyone and anyone that disagrees about their pronouncements an idiot. This claim about whales was made long after DNA testing became available. They did not test their theory before claiming a miraculous proof of macro-evolution. In fact, I have read articles since this link was disproven claiming that DNA testing is nonsense because the bones (less than 10% of the makeup of a creature) are more valid prove than DNA (which shows 100% of the makeup of a creature. So much for evolution "science".