I believe that what you see in the video is not a U.S. bomb, but a "Barrel Bomb', a preferred weapon of the Assad regime. It is simply a barrel, such as an empty oil drum filled with any available explosive and provided with either a time fuse of a simple impact fuse. It is simply pushed off the rear ramp of a helicopter over the target, such as shown in the vid.
There has been an outcry over the use of these weapons, although it's hard to see that they are any worse than many other weapons. It just depends on how it is used.