The brochure is a pseudo-scientific argument from complexity from beginning to end. It doesn't mention the deeper theological reason why scientists could not make life.
What is the "spirit" the returns to god at death according to the Watchtower? It is the impersonal force that gives life to all living things. It emanates from god and returns to god. It was compared to electricity with god as its unique source.
HOW CAN ANYTHING BE ALIVE WITHOUT SPIRIT IN WT THEOLOGY?
Spirit comes from god alone therefore scientists can NEVER create a living thing from rocks. They might make a cell but it would be lifeless.
"Spirit" is inaccessible to science.
For the same reason Satan can never create life.