Good luck to you! I’m sorry your headphones broke, that sucks. Thanks for the detailed pictures. Yours really went all the way through! I don’t see them crack that dramatically too often. Usually it just happens in the plastic, and I’m amazed to see the metal go too right at the joint.
Sony hasn’t sent out any kind of official statement, and folks are having wildly different experiences with their support department depending on where they are and what Sony decides on a case-by-case basis.
All we can do for now is keep talking about it and letting people know that it’s a risk of owning these headphones.