Most of those things you do for a break-in can't hurt anything and may help if there is something a 'little off'. So if it's your car, it's like a bit of insurance.
This could lead to talk about that first oil change. Some of the additives found in factory fill oil, represent fall-out from assembly more than a special oil. If the engine is assembled and there is some lag time till it gets installed and some more lag time until the car/truck gets shipped, stored in a lot, driven in short bursts until it's sold, you have a car that should have it's first oil change very soon after being delivered, based on time. All this has got to be considered in the break-in of new car.
I do some maintenance software that tracks and manages all kinds of stuff. There are some new vehicles purchased in the past few years that have over 500 days from build until purchase. These vehicles were Fords on long rebate deals and others were over 300 days. They received their first oil change real soon after being put in service.