What if Felix and Claire would prefer more independent and private futures for their children? Isn't the choice of the HGD couple (if it IS a choice)encroaching on their right to prepare Amalia for the private and extremely wealthy life that is her right by birth?
As harsh as it sounds, a Royal Crown princely couple does not have the freedom
to choose to remain childless. That is completely contrary to the idea of hereditary monarchy...and it violates the vows this particular couple took at the altar before God, not incidentally.
In every pre-marital interview when the subject was broached, Guillaume gave every indication that he was enthusiastic about having a family.
If Stephanie felt differently, she should not have wed the Heir to the Throne.
All this is my opinion only IF the couple is in their situation by choice. If they are not, then it's of course very sad and they have my sympathy.