It all depends on the state of the dealer's allocations. More often than not, when someone orders a vehicle, they don't enter a new order, but take an existing, in-process order that was destined for dealer inventory, with a general mix of options, and modify the order to match your desired options/colors. And it depends where that existing order is in the process when they modify it to match your requirements.

It sounds like you might have been a "new order," or the dealer had already sold his earlier in-process allocations to other customers and you got a later allocation.