I guess it's all in how you define the word cult. Looking at the definition below, any religion, including Christianity, could be labelled a cult. Thanks for posting the article. It seems to me that the Krishna movement promotes a healthy lifestyle overall. I don't have any one particular religion that I'm a part of though.
Dictionary definition:
cultlt |kəlt|
noun
a system of religious veneration and devotion directed toward a particular figure or object : the cult of St. Olaf.
• a relatively small group of people having religious beliefs or practices regarded by others as strange or sinister : a network of Satan-worshiping cults.
• a misplaced or excessive admiration for a particular person or thing : a cult of personality surrounding the leaders.
• [usu. as adj. ] a person or thing that is popular or fashionable, esp. among a particular section of society : a cult film.