Well, IMHO they fall short beacuse they... are short (ugh).
HG in the original material were iconically big. I don't think any race smaller than Large can give me the same feel. The same happened with the 3e rendition of HG. They didn't feel right to me.
Personally, I'd rather have Large sized half-giants too. It'd be nice to take them back to their roots. However, I don't see WotC allowing a Large sized creature any time soon, due to balance issues. My guess is that the half-giant, no matter the presentation, will be on the upper side of medium.
If I can't have a playable, balanced PC race of Large Half-Giants, I'd rather really only have them as a monster race and use them as the sorcerer-kings' bodyguards, like I almost always did.
I'd prefer to save the feeling of the setting than having a PC race more.
Personally, I'd like to have the half-giant as a playable race since they were back in 2e. To take that option away would be to take away a part of the setting, IMO.
At a minimum, Half-Giants had the iconic "Stomp" power and psionic aptitude.
Those were abilities that were added on after Dark Sun in the Expanded Psionics Handbook in 3.5. If you look at a Dark Sun half-giant and the XPH half-giant, they are very different beasts. The XPH version added the stomp power, but shrank the half-giant by 3 feet and put it on a massive weight loss program. If anything defined the Dark Sun half-giant beyond their massive size, it was their axis alignment, an aspect of them that I don't think will work in 4e.
So to me, saying the goliath wouldn't work for the half-giant since they can't "stomp" is a false analogy since the 3.5 half-giant was so different from its 2e inspiration. Now, if you argued about the height difference and the axis alignment, I'd be there with you.
Question is, did the goliath kill the half-giant and take his stuff?
