Well calling it genocide is just PC gobblygook.
I know it's PC crap, but it bugs me that they throw words around like genocide and holocaust in regards to the smallpox and other diseases. I'm not saying that it's not bad that the majority of their people were wiped out - it is a tragedy, but Europe endured several of those tragedies.
Quick look at dictionary.com - genocide - The systematic and planned extermination of an entire national, racial, political, or ethnic group.
That doesn't fit what they call genocide at all, and in a way it lessens what true victims of a genocide or holocaust actually went through.