You may want to consider reading the full article. Though she doesn’t believe that chattel slavery was truly a choice, she ties that “eureka!” moment to this:

Another case of Asimov’s Cult of Ignorance - “My ignorance is just as good as your knowledge.”

Yes I was completely confusing my terminology Ovum with Embryo. There is apparently both forms of IVF, with Egg/Ovum freezing being the more common form. Embryo freezing is less common and caries with it some possible serious legal ramifications. That was completely my mistake.