It's kind of cute, but I think the author's assessment is probably about right: people will play with it for a few minutes as a sort of "hey, it's neat that the system I just pulled out of the box can do this" tech demo, and then promptly forget about it.
Frankly, I think AR has some of the same problems that VR is only now (maybe!) overcoming with the Occulus Rift. It just can't keep up with what the player is doing in real time all that well, or if it does, it's only in a very broad or very canned manner (it can tell if you're trying to flick something if that's what the game is designed to do, but won't understand if you're trying to grasp something; it interprets all gestures as "hit", then loses track of collision detection if you start moving too fast, etc.)
Some day it may make for more than "huh, that's sort of cool" moments, but right now it's not unlike computer speech synthesis in the 1980s. "Hey, look what I can make my machine do!"