This is a Dangerous Thing to Try, So You shouldn’t Do It.
Due to how much it would hurt the business’s bottom line, the store wouldn’t have been able to stay open for even one day if they had to close for repairs. They told the construction workers that everything would be fine as long as they kept working as usual and encouraged them to keep working as expected.
Do what needs to be done, but don’t act like we’re not in the room. Most likely, the property owners should have been told that part of the project would involve taking out the support beams on the upper floor. That seems like important information to share with other people.