Yeah i think those videos pretty much sum up how garbage Nvidia currently is at DX12, i turned it off in The Division on my 1070. Pretty much confirms that Pascal is still not a 100% DX12 card.
Also if the Vega top tier card is faster than a 1080 and close to the 1080ti in DX11, its all over in DX12 lol.
Still think DX12 needs a massive backing from somewhere, looks like Vulkan is going to be the better API currently.
What DX12 needs is a developer that'll create a game from scratch using it. Not a DX11 base with 12 tacked on as has been happening.