"Is Genetically Engineering Animals To Not Feel Pain Really the Solution to Factory Farming?"?

I was reading this article about genetically engendering animals in farm factories to feel less pain. Making them more willing to submit themselves to horrible treatment, only because now they can not feel the pain. Does this seem only a mask to cover the real issue with farm factories and the slaughter houses. This is not just preaching animal rights either this has to do with climate change, our environmental foot print, and our constantly increasing consumerism. To fully answer this question I highly recommend reading the article.