I actually find it a bit funny how big of a deal the uncanny valley still is. But maybe the low-point of the valley is dependent on the person, and I suspect people that have grown up with computers and video games are far less creeped out by it.
For me, the low-point on the curve was from some of the characters in late 90's-early 2000's video games. Think Ocarina of Time or Deus Ex. Once it got past that, I was perfectly comfortable.
As for voice, hell, I could sleep soundly with hal-9000, gladOS, or prof Hawking reading me bedtime stories.
But, as I did actually skim the article, I can see that the article is more about the un-human responses the device gives, not the voice. Which, again, to someone who's grown up with computers, we're used to the occasional rediculous, non-sensical answers. It doesn't matter if my computer has an almost-human voice, I'm still very aware of it's limitations.