Only tangentially on topic (but more interesting that the actual content of the video I think), but I suspect no warhead reentry shield would actually be shaped as pointy as that.

Although you would think a more aerodynamic shape would reduce the drag and therefore heat of reentry, the reality is not quite so simple. In fact, the opposite is actually true. As you make the reentry shield blunter (increasing the drag coefficient as you do so) the heat load the shield needs to take actually drops. The reason for this apparently is that blunt reentry bodies form a sort of cushion of air around themselves that separates the shockwave caused by reentry from the reentry vehicle itself, insulating it.

I suppose sharp pointy warheads are more theatrical though.