Quick update again, finally heard back from a supervisor within customer care. He is initiating a process internally called a "Good faith review" to see if Ford is willing to do anything with the rattling turbos. I explained that Ford really should show new customers the TSB about rattles being normal, prior to customers signing the owner agreement during a purchase. Honestly, if you're product design allows for parts to functionally start rattling over time, customers should know that. Especially if the manufacturer just brushes their hands together and says "meh, that's normal and to be expected", we should all know.
I've thought about reporting it to some consumer agencies, as it really feels pretty shady that a company can just create a document that says this problem is normal. What's next? Exhaust leaks are normal? the soggy wet passenger compartments are normal (even though we had another forum member recently write it's often due to Kentucky assembly line workers not installing plugs)? We'll see what they say. The supervisor did say that in these cases they often try to offer ESP's, I replied, I already bought your most expensive ESP. What I really want is in writing that if the Turbo's do fail, as metal slapping against metal (making the noise) will eventually fail, that I won't have trouble getting them replaced.