Sounds to me like a driver shortage. The trailers are towed from the factory to your dealer by owner-operators (regular guys with one-ton trucks). They get very busy right now. Same thing happened last year.
My dealer said they would drive down themselves if it was too delayed.
Hopefully others can share their experiences.
DW, 3 Kids and our Goldens
2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD