What led you to expect any of that when you clicked on the link?

The first paragraph of the article heavily implied that a comparison would be made between the insurgency and counter-insurgency tactics of mid 1800s American great plains and modern day Iraq and Afghanistan.

IMO that would probably make a more interesting article. While obviously IS and the Native Americans are ideological worlds apart, both groups ran/run an insurgency against the technologically superior US army. It is worth noting which tactics work and which do not.