You are totally right about the food in Mexico, im from Dominican Republic and i've been 4 times in Mexico, i visited CDMX and Zipolite nude beach in the OAXACA province, and the food has less artificial stuff , i notice that dairy and milk in mexico taste delicious , you go to any restaurant in mexico city and the service is going to be top notch .
Mexico in general has a great variety of food, and dishes for which you never get bored of its gastronomy.