One of the things I took away from the explanation from the buddy boat was how one of the passenger's on the sinking boat "dove for the floor of my boat and landed hard!" While the other crew on the sinking boat just stepped aboard the rescuing buddy boat.
I've seen similar things happen before as well where panic can lead to other safety issues, injuries, and even death when they can be avoided if control, calm, and safety are taken when a rescue is happening. Of course that can be hard to do when things are going sideways quickly but it can really help keep from other things compounding the problems if people try to stay as calm as possible.
Shows how really important it is to either have a life raft off shore or buddy boats within radio/cell/sat calling distance of you. Glad everyone ended up safe during this very ****** occurrence.