Lionel has made such mistakes before, but they usually make up for it in some way. I remember when they came out with the Girls set remake they left out the Pull-More motor as was advertised. The unit came with a DC motor and that upset alot of people. Lionel sent us all a special box car to make up for the disappointment.
I bet if you all keep up some polite pressure they may be coaxed to do something similar for you.
In any case, I hope your new engines are great runners and you have many happy years playing with them.
