I have seen new cars being charged as I drove past dealership lots virtually all of my life.Hi Peedue and welcome to the Lincoln Forums.. My opinion: It would not be unusual for the battery to die in a vehicle that has been sitting for ~5 months, and which has most likely been driven very little, if at all. Especially with the pandemic going on. And even if the battery had not been completely killed by the ~5 months lack of use, a 20 mile drive may not be enough to sufficiently recharge it.
Ideally, should a Dealer try to mitigate these situations from happening? Ideally, yes. But it is not an ideal world. Especially nowadays. And the Service Department is not going to go out every day to check all the batteries in all the cars in the lot, charge weak ones, replace dead ones etc, until it is necessary. It is a lot of work for a lot full of cars. And they would not be reimbursed by Lincoln/Ford for warranty costs until the vehicle is purchased.
A better idea, would be to do what most Dealers in my area seem to do. They would send out an employee to bring the car to the door of the showroom for you. If it does not start, they immediately jump it in the lot, out of sight of the customer (in most cases anyway). In this way, the customer is not awkwardly trying to start a dead car.
I am not minimizing your concerns, and I realize it will put a bad taste in the mouth of some buyers. But Lincoln is not the only manufacturer having these issues nowadays. So I am simply pointing out a different perspective.
Good luck with your shopping.
I have seen new cars being charged as I drove past dealership lots virtually all of my life.
... Not sure what happens once they drive off and are away from the house but have no key with them