Um, there's a bit of a generalization here. The nature of ESC growth has led to hypothesized treatments for neurodegenerative conditions, and possibly diabetes. But their strongest potential is for research, not clinical therapies. Nor have they shown much potential for cancer treatments, while ASCs do. Researchers' excitement over ESCs is justified, but the potential uses were grossly overstated as these hypothoses reached the public forum. One way to look at it is that ASCs are currently best applied to therapeutic applications, while ESCs are best for researching the nature of the diseases themselves.
All of this is mute, however, because the study you've referenced did not utilize adult stem cells at all. They used cloned leukocytes.
Good day.
Uh..."moot" that is. 
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