Bemused, the diff is that over there the boss wasnt gaining a thing by staying late, he simply allowed them to continue the sheva bachos at their own pace, they wernt paying him overtime. In this restaurant, clearly, if he would’ve sent them away he wouldve lost their business.
I work on Motzei shabbos and way after hours to get orders out to pple ASAP, am I being nice, a mentch? No, I am looking to have satisfied customers and hope they will come back after being happy with the service.
I think this is very clear to anyone in the business world.