"Only 20-30% penetration" (according to the article) apparently means it is "dead". 20-30% in that short timespan sounds amazingly
high given how long a typical TV lasts, and the wide range of form-factors (presumably "nobody" cares about 3D on the lower sized screens that are rarely used for movies).
And it explains the de-emphasis on 3D somewhere like CES: You won't easily sell lots more new high-end TV's if you emphasise on something all of your competition has, including the low end. And when I went to Amazon to check right now, the cheapest 42" screen on offer in their UK store is a 3D tv...