Also last time i checked, golden rice had lower yields than other varieties so it still needs years of breeding to be competitive. And needless to say, the real solution to these nutrition problems is economic development, which won't happen with propietary crops.

Classic tech bro solutions without understanding the real problem.

Yet, malnutrition is prevalent, particularly among children and women. This is not simply because of the absence of an important nutrient or vitamin. It is caused by the “lack of access to sufficient, nutritious and safe food” due to poverty, and changing food production and consumption patterns (p. 27, UN FAO, 2017).

quoted from the grain.org article you postes.