When reading the Wikipedia entry on pistachio, I noticed that IUCN has classified the plant under "Near Threatened". On looking up its entry at IUCN, I see that its population is trending downwards, and it is "threatened by fruit collection, livestock grazing and cutting". The treat seems to have nothing to do with the often reported fungus. Looking up the yearly yields at Administrative Committee for Pistachios, I see that 2010 and 2012 were bumper years, but otherwise, I see no real trend of a decrease. Quite the contrary, I get the impression that the yearly yield is increasing. It's not as if the tree is difficult to grow, and we rely on trees growing in the wild; these trees are grown in orchards.
So, what's going on? Why would IUCN say that pistachio is Near Threatened?