Yes, she is definitely playing with the fact that Evo is acting very calmly and being polite with her despite the situation, and at the same time making a reference to his aymaran descent. Cristina is not known for being frugal in speech nor calm when in adverse situations.
I have spent a lot of time in Argentina. Argentinian people are very into being cute and intimate, even with people they don't know that well. There is a refreshing lack of excessive seriousness in that culture. If you know Spanish and have seen Kirschner speak she almost comes off as a goofball the way she cracks jokes and makes "cute" references to things, but it's really just a reflection of Argentine culture more than anything else.
Argentine here, CFK's way of speaking is a reflection of insanity, not Argentine culture. True, we take many things lightly but CFK goes way over the top, especially for a President.
In any case, the deep-rooted corruption of her administration (and practically all others decades before it) is a symbol of Argentine culture.
