If you read the article none of the executives quoted directly mention how cheap Chinese labor is. They talk about how quickly they can "scale up or down." There are only 2 countries where you can scale up your semi-skilled work force rapidly, and the other country hasn't started ramping up for manufacturing just yet.
Regarding your comment about suicide, China for various reasons has a rather high suicide rate. Its not clear to me if the suicide rate amongst FoxConn workers is just a symptom of their society or something really bad about FoxConn itself.