“some Roshei Yeshiva and Rabbanim will not be Mesader unless the Chossen signs one.”
We all know which “Yeshiva” that is, and it’s the only one in the country which advocates for it.
Might not be as bad and mamzer-making as the Lieberman clause, but give it a few years and a few more social media protestors and you’ll be hearing about kidushin al tanai and hafkaah