If someone said "I want the performance package but I don't want the sound deadening removed," I can spoil the surprise of what you're getting: the sound deadening removed. That's not how it works, for a variety of reasons. They don't have a Sonderwunsch division at MM to complete one-off requests, and there needs to be agreement between the systems at Flat Rock, Jackson Dawson, Multimatic and Ford for vehicle builds, which is extremely complicated to begin with. It's a production car; they can't just leave a post-it on the side that says "put the sound deadening back in this one."
I will definitely look into what happened with the GT. Can you point me to where I can learn more details about that program and how it evolved over time? I'm interested to learn more.
Speaking of interesting subcultures, I've never understood the point of people screaming into the void of the internet about things they aren't buying. Now that is strange.