Neither, it's apathy. The US media doesn't really cover the space exploits of its allies in Europe or Japan either, unless it's something really huge. I think the US views other countries doing things in space it already did decades ago as boring. When China does something that surpasses what the US has done, like building a Moon base or a manned Mars mission, there will be plenty of coverage.

Even this specific point of discussion, the Chinese "moon landing", is just landing a rover there, not a person, so it's not really very notable for Americans.

As a non-government source, the South China Morning post is the closest thing to an independent newspaper and they have a collection of articles about the Yutu rover: http://www.scmp.com/topics/jade-rabbit-lunar-rover