I'm the last person on earth to get offended at PC stuff, and I have a dark sense of humor, but that joke just doesn't work. The wording is just too clunky. That, and the fact that the Ebola outbreak will likely kill millions of people before it is over. I'm not offended or anything, I just don't think it works. It's basically like making a holocaust joke.
Regarding Dallas, I think Seattle will handle them just fine. But their defense so far is flirting with top 10 status and their run game is easily the best in the NFL. Their OL is playing lights out, and Romo is still a top 15 QB. They look like they are on their way to at least 10 wins if they keep playing D and running the ball.