Other than a lot of speculation, I don't think I ever heard the exact reason, they held shipment up at the original launch date.
I definitely feel pain here on these issues, however, lets put a few thing's to rest.. In jest it's easy to mention a 'Monday' problem. But what is a Monday when 3 shifts are working and your on a 7 day operation? Or you get 1-2 days off a month? These parts, all of them go along a sequence.. Most are run to DCP's,, by this guy today, and the next step tomorrow night, but by someone else. Everyone is concerned about quality. From the person who makes a part to that man's boss. Granted some problems should have NEVER left Oakville. Paint, bad door seems, etc.
This CD3 platform is using a brand new Engine, Transmission and drive-line. Original model run was a hopeful 100K/yr. Due to this design success "the Mustang of CUV's" for the first year, that goal was a 175% SUCCESS. This is one of the problems as to why it's hard to get service parts to a dealership.
Even assuming this is just a small seal problem, These are design/tested in Cold extremes to see if unforeseen design problems show up. I know of assembly line problems where a certain part was inadvertently left out. No particular fail-safe was there to detect it, the completed part made it all the way thru a functional test. The defect was never caught until the vehicle was in service. These thing's happen. What's NOT OK, is when it happens to YOU.
I have a Sony TV that the Light block was just replaced in it Wed. 1.5 yrs old $800. Warranty. I once asked a company that just installed a new assembly line in a plant: Cost of the line was $15 Mil. I asked, what was the cost of the warranty on that? I got an answer, $1.5 Mil. So you see, everything has the potential to break, and manufacturers offer warranties, and you ultimately pay for it, because we are all human. Most items are designed for a working life of 10 years in almost every field. IF you want it to last longer than that, you couldn't afford it.
Every service department will be glad to work on your problem, that is where they make money, the cost is billed back to Ford. You've already paid for it, when you bought your vehicle.