>>IMHO, they’ll make this illegal in humans. <<
Who is “they”? and will it be worldwide? Do you actually believe that every country would enforce it? What about those dictators who yearn for an Olympic Gold metal? Or those who believe they can breed violence out of the human mind?
At least in the USA. I can't tell what some wacked out dictator or lefty would do. This also presumes that there are no flaws in this method.
(David) Solter says that at the extreme, the new approach could lead to the production of human embryos from cell lines and tissue samples. Still, he notes, "defining the status of such 'parentless' human embryos and the biological, ethical, and legal issues they will raise defies the imagination."