For the same reason Voodoo isn't equated with auto mechanics , I guess. Ever sacrifice a chicken to fix your transmission? No? Me either. I don't think it will work anymore than praying to JESUS, knock on wood! YOU NEVER KNOW...but until otherwise, facts and science will do just fine. Facts are a wonderful thing. Superstition, not so well.
Since nature gives the appearance of design who or what is the designer ? Dawkins made the comment about appearing to have been designed.
Since nature does not give any such appearance of supernatural design, we can presume your subjective opinions derive from your extremist beliefs.