Outside the fact that Bartashevitch makes a great argument for universal background checks, his mental break with reality demonstrates another important fact: education. One of the first rules of gun ownership is that you never - under any circumstances - point a a gun at someone unless you intend to kill them. This applies across the board whether or not the gun is loaded. Either Bartashevitch forgot this, or he never learned it to begin with. Either way, it shows a serious need in the current infrastructure that should be addressed.
David Pakman addressed this incident on his show recently. Here's the video: