For a vehicle this new, it does happen, I've seen it and there are a few examples of posters here where it happened. One guy needed a new tranny after a couple of months, he got a new truck.
Needing a new engine within warranty is rare, needing a new one before the first payment is even rarer, considering the depreciation loss on resale of a major powertrain replacement on a brand new truck along with the wait time which could be weeks in this case. It's easier to just get him into a new vehicle while the manufacturer takes the hit, repairs the vehicle in their own time and sells it at a discount.
However, the OP doesn't actually want a new truck, he speced this his way and wants it back, that's totally fine as well.