So, because of Magnus' influence on the entire werewolf specie, even the mating practices had been changed. All the packs are more than willing to do it in ways that Magnus' suggested rather not bringing an heir in the end. The fear of infertility, this is all where their submission is coming from. For the rest of the packs, Magnus has the answer to the very problem which they feared, and so they will do whatever suggestion he said.
Now, the public was shocked hearing that the elusive CEO of Moon Pharma is getting engage. In short he and her mate will soon be properly presented through a ceremony, for the public to know that they were mated to each other. After that, for quite some time, then the unification ritual will take place in a moon phase according to the alpha mate's birth month
