WIY: No, dictating when and where and how the criticism can be rendered does not remove the double standard. What would is saying that she is equally open to to voice whatever constructive criticism she sees fit–as it establishes the SAME standard for both parties involved.
I think your problem here lies in your understanding of the term “constructive criticism.” You define both criticism being rendered and received in terms of only yourself–you get to decide the criteria for both. In reality, constructive criticism is a two way street. The person giving the criticism must be mindful that it is indeed constructive, and the person being criticized must be allowed to voice their opinion as what is constructive in terms of their needs. Saying that one side MUST (as a condition of marriage, as stated) be open to what the other party decides is constructive criticism sets a standard for something that cannot be called true constructive criticism.