Swinging elbow contact (video)

[Nevadaref]

The action is difficult to see because there are other players in the way and the camera is at a distance.
If one of our video gurus could copy this and post it again such that it can be viewed in slow motion that would be helpful.
For now, my opinion is that the action constitutes either a player control foul or an intentional personal foul. I do not believe that it warranted a flagrant personal foul. The act was not savage or violent, just reckless.