It should be both. Media and official. His background is a bit humble to be orth what some of those upper estimates are.
You're doing your part to point it out. I followed your lead and found inconsistent data, so we both acted as citizen-journalists of a sort. That's how it should be.
Now let's see if others pick up where you and I left off. We need other sources to determine if those "upper estimates" are accurate or just agitprop -- or worst case, libel.
-PJ