I can't imagine why anyone would want to discuss the arrangements aboard AF1, considering that nobody on here is likely to be a passenger on the aeroplane.
Perhaps because they want to know how much "seat belts fastened at all times" on aircraft for the common folk is genuine concern for their safety, and how much it's lawyer driven. Perhaps also because they'd like to know how often the seat-belts sign is used as a form of crowd control, or again because the company lawyers are nervous.
I don't have much interest--as a Nervous Flyer, I've kept my seat belt fastened at all times since I first heard the phrase "Clear Air Turbulence," but there is perhaps a real interest in what is considered best practice at POTUS level. Of course, it is always possible that the rich and powerful believe they are subject to custom-designed laws of nature.