Documentation, documentation, documentation..... I too would have a nice write up to Ford with a Cc to the dealership. They may try putting all the "verbiage" together they want, that won't help you if you are beyond the 5 years or 100k, and see the developing fruits of the premature wear (which can be traced back to this event). The dropping of the pan and INDEPENDENT analysis of the oil content (for metal "stuff") would set your mind at ease and would release the liability of a slow developing issue (or at least decrease it).
How is this going to affect the truck's performance over time?
How is this going to affect the resale value of the truck, considering that it is now permanently on the OASIS records?
Their fault should not be your liability. I would ask for a refresh and INDEPENDENT analysis, at a minimum OR tell them you want a new transmission LOL!
As far as the dealership, if they are concerned about a couple of hundred dollars on a repair, then they should be equally concerned about time wasted in english comp of those well worded replies. How are they going to feel about you bringing your truck in for every hiccups you feel or hear with the truck (and its associated wasted time and resources)?