I don't think medical tourist in Mexico is as dangerous as people insinuate. When procedures in the US are of "high" quality and expensive, it becomes a weapon against poorer people who can't afford it here in the States. It's natural to seek alternative services if the ones nearer you are at cut-throat prices.
People aren’t just insinuating. The US state department has a do not travel advisory warning to its citizens not to travel to some states in Mexico. If you would read the OP, you would note it was mentioned that Americans who crossed over to Mexico for a medical procedure were kidnapped and unfortunately, two from the lot died. If that’s not dangerous, I don’t know what is.
Kidnapping as well as other violent crimes carried out by drug gangs and cartels in a certain area does not make the place safe for the citizens not less foreigners coming in for either work or pleasure or both. Insecurity would always hinder tourism in any locale and medical tourism isn’t left out.
Just a few states in Mexico are deemed dangerous and generally, I think Mexico could be considered safe. You’ve just got to avoid certain areas.