This makes perfect sense. Natural oil leaks occur quite often. But they are usually less concentrated and in lower volumes at any single point in time and space than an artificial oil leak such as at the gulf. But, nevertheless, nature has mechanisms in place that can deal with oil. Many of them don't work in spills of this magnitude, but many others will, over time, do more than we projected. The other problem that the article doesn't mention, however, is the ecosystem unbalance caused by the increase of the particular chemicals that creatures (usually bacteria) devour in that given area. While I'm sure the food-chain will eventually work its magic and all will be well and good again, it is a startling upset to the balance of nature when predators (fish) suddenly die out at the same time prey (the bacteria) begin to flourish.