Some would argue that the American .gov agency would be crazy to not check Al-Jazeera out itself. I'd imagine that someone gets paid to do exactly that.
If you want to be educated about the world, sometimes it's good to hear the opinion of people who probably don't agree with you - that's why I check out Al-Jazeera occasionally. But in this case, some of the screwy sources of statistics notwithstanding, I think they took a fairly unbiased crack at just telling the facts. I've definitely seen worse from American news agencies.