Are you actually finding the wire disconnected? Or are you making an assumption on the cause? The log file is not going to detect a wire being disconnected. It will just show the loss of attitude control as the desired attitude and actual attitude diverge. And it will generally show the desired throttle going up on the motor as the angle continues to go down. Both indicate a loss of thrust to one a motor, causing a loss of control. But that isn't going to tell you WHY. If could be due to a wire disconnecting. It could be due to mechanical failure. it could be due to electronic failure in the ESC. It could be due to propeller failure. Etc etc etc.
In your most recent video, it appeared to regain attitude control and thrust just before hitting the ground, where it was of course too late to arrest the descent, but at least it softened the impact.
That's the same user.