Without foresight to solve heterochiral incidents, a primordial cell would quickly perish even if, against all odds, it began homochiral.
The label “powerhouses of the cell” was too simplistic for the many tasks performed every second by these computing, networking, signaling, regulating wonders.
Honeybees and cells have a limited set of options that are programmed into their genomes.
I do not know Dr. Merilä’s stance on human origins, but it is a safe bet that he denies intelligent design, and believes humans evolved from other animals.
The ability to sequence genomes was a great accomplishment. But there is something over and above genes.