Yeah..."cruisebruise" site is fairly well known as being totally anti-cruise industry.
Another part of that article that wasn't posted...
"....the murder rate of 2 per 100,00 in Yucatán, the Gulf of Mexico state known for its beaches and Mayan ruins, was comparable to Wyoming and Montana."
I travel a whole lot, too. I'm not a paranoid person. Not saying the articles are written by people who are paramoid. But, I think there's a lot of sensationalism regarding these Cancun/Cozumel stories.....most probably planted with the news aggregators (and subsequently picked up by mainstream news agencies.
If they can get just one major cruise line WEB site (like this one), they have been successsful.