Central dogma reminder: DNA -> RNA -> Protein.
In the scheme of a person, a gene (DNA) doesn't mean as much as protein folding does. To give a programming example, DNA is the source code, RNA is the compiler and proteins are the executed program.
A "person" is the executed program bc it's the end result. However tracing a lineage back to the source code of DNA to figure out the smallest amount of code required to create the program is often difficult (if not impossible).
Genes are the blueprint, how those genes are transcribed into RNA and then translated into proteins matters FAR more than the amount of genes that it would take to make a sustainable human.
So while I understand what this article is trying to get at, it's missing the central dogma of molecular biology which is still the wild Wild West!