A few quotes from the link, and from people inside the countries with problems of malnutrition, and without a different agenda:
According to Daycha Siripatra of the Alternative Agriculture Network in Thailand and the director of Technology for Rural and Ecological Enrichment, vitamin A deficiency will not be solved by golden rice technology since it does not address the key to the problem of poverty, which is landlessness. "They're cheating us. If the poor had land, they would have better diets. The poor don't need vitamin A. They need vitamin L, that's Vitamin Land. And they need Vitamin M, that's Vitamin Money. Malnutrition is because of poverty, not [a lack of] technology."
Dr. Romy Quijano, a medical doctor who heads the Philippine Action Network, also believes that the sensible approach to preventing vitamin A deficiency is to see that the vulnerable sectors of the population are empowered enough to access natural sources of vitamin A. "Effective nutrition education is much better than adding yet another source of vitamin A which most likely will not be equitably distributed anyway; improving livelihood; providing better health care system; addressing malnutrition, communicable diseases and other illnesses that make children more vulnerable to vitamin A deficiency.
According to Dr. Samson Tsou of the Asian Vegetable Research and Development Center (AVRDC), countries with vegetable consumption of more than 200 grams of vegetables per day do not have vitamin A deficiency as a major problem. Although animal sources are expensive, inexpensive plant food sources are widely available. It only takes two tablespoonfuls of yellow sweet potatoes, half a cup of dark green leafy vegetables or two-thirds of a medium-sized mango in a day to meet the vitamin A requirement of a pre-school child. This way, not only is the vitamin A requirement being addressed, but a whole range of other micronutrients as well.