What has either got to do with the existence of a deity?
The former is a mathematical expression denoting an understanding of physical forces. The latter by default postulates a sole cause that omits intelligent design. This is due to a philosophical stance that defines science as incapable of, or disinterested in, anything beyond what is physically observed.
The omission of intelligent design on the part of devotees to materialism is not due to a lack of evidence so much as an aversion to religious implications, which implications may or may not be necessitated by the presence of intelligent design. If it is objectively true that an intelligent being designed the DNA molecule, for example, science will blind itself to this truth not because there is lack of evidence or possibility, but for other reasons with which you are intimately familiar. Emotional, philosophical reasons, not empirical ones.