Certainly, I agree. Chemicals form the very hard drive that you are using in your computer today, for instance.
But just because chemicals formed your hard drive doesn't mean that data was automatically stored on it.
How did the data get onto your hard drive? Perhaps you put some data onto your hard drive. Perhaps the manufacturer of your PC put some data on it, too. Did data self-form into useful programs on your hard drive with no intelligent intervention whatsoever? To calculate the probability / improbability of that data self-forming in the chemicals that comprise your hard drive, we can use Watson's math proof above.
Likewise, we can apply the same mathematical proof to the probability / improbability of data self-forming into other chemicals, such as in the chemicals that comprise DNA.
Now we are on the threshold of seeing the question studied in the laboratory. See you in the future.