You just don't understand American culture.
The first time I heard of the Constellation Class frigate, I knew it was going to fail. I knew the Americans couldn't help themselves but to pimp up the stats, and there was simply no way to fit cruiser-level of armament into the hull of a frigate. I was right. In US, every new design has to be bigger and more badass than the previous, so this new Trump class satisfies that requirement perfectly. It would be large enough that system contractors wouldn't have to compete with each other for space, so everybody gets a share of the pie. No one will allow it to be canceled.