B&H is run and staffed by Hasidic Jews. They have strict definitions of work that are forbidden on the Sabbath and they may not always be intuitive to outsiders, for example, for many religious Jews, pressing the elevator button is forbidden, but riding in an elevator that is programmed to just stop on every floor is fine.

Your mind is free to boggle, but Jews are entitled to close their businesses on the Sabbath just the same as Christians. In the county I grew up in, everything but supermarkets is closed on Sunday, for example.