Because you could fit coilovers with a soft spring rate, maintain a stock ride height and you'd have way less wollow/roll thru the bends than OE suspension.
Having worked at a dealer, you'll have lads that genuinely care about customers cars and will treat as their own and you'll have some thats main concern is bonus and racing thru the work as quickly as possible with a 'that will do attitude' #cutcorners. Which type of person your keys will be handed too is pot luck.
I wouldn't let a dealer wash my car, let alone work on it lol
Nissan SMR below