This is an organizational failure and one that has been known for decades. If your entire org isn't oriented around the same goal of shipping value to customers

This is an organizational failure and one that has been known for decades. If your entire org isn't oriented around the same goal of shipping value to customers, then they will just end up defending their own limited horizontal viewpoint. The testing team wants test coverage? Why do you have a testing team? QA should be embedded in your product team. QA should want to ship customer value in the most responsible way. Security should want to ship customer value. Even your content and marketing teams. They can express opinions, but the product manager can take it or leave it in terms of how it affects the actual value of the product. And quality, security and scalability are definitely components of value. CYA is not.