Here is the video, with text commentary: http://blog.ninapaley.com/2012/10/01/this-land-is-mine/
I wouldn't normally link to this, but this was a response that was pretty good in /r/badhistory:
It sums up a lot of the mistakes in the video related to the guns used in a fairly lighthearted way.
Overall, the video is just way too...simple. It doesn't really describe much, and there's not much to critique.