Lets give this a good logical look.
HDMI, does it support G-Sync.....nope. So if you want to bash the lack of HDMI support on this front when Nvidia and AMD are both actively pushing a technology(G-Sync or Free-Sync) that isn't compatible with HDMI.... you fail.
Then lets look at the whole need for G-Sync, its the assumption that Nvidia can't make a graphics card that will push a full 60FPS at 4K resolution (OK, that was a jab), so lets make the monitor refresh at the frame rate we can drive instead. So then we have two choices here, either 60FPS isn't really that important, or it is, so which one is it guys? Either way its still a fail, as it only works on Display Port.
AMD releases a card without support for a display standard, like they did before, and yet shipped plug and play active DP adapters in the box, whats the chance they will do the same here then?
Lastly lets place the blame for this at the feet of those who deserve it, the TV makers, who could provide us with DisplayPort capable televisions, and yet haven't yet, its like the first generation of HD TV's that had strangely mixed options for input, and sometimes they may or may not work as expected. Samsung should know better, Panasonic, Toshiba, and others should know better, they are paying for a dying standard, but they are doing it for planned obsolescence IMO.