True, but it’s also common for people to acknowledge where their DNA came from.
You would likely be called out if you tried to hide that fact in order to seem more accomplished than your are. If for instance your dad is the owner of the company you are working at, you’d be rightfully be called out if you tried to hide the fact that your accomplishment is lessened by the fact that you copied your fathers DNA.
No one is claiming the author did anything wrong in copying the source material for his article. However it is wrong to not provide proper attribution, especially when it’s as easy as an “inspired by link” at the bottom.