That's done to individual dealer practises, some do, some don't, don't worry yourself if there's no discrepancies.
Cheers for the reassurance. But still a little worrying to now know that something may suddenly and unexpectedly appear at a later date which could compromise the car's saleability and value? I would like to think the Dealer did do the full checks and wonder why they're not all required to do it if so quick and simple??? Strange!