Why do people object to putting in multiple embryos? That one woman had healthy babies doing it.

Many issues involved. Implanting > 1 to get at least 1 successful is part of the ivf process.The greater the embryo count, the less weeks the pregnancy will continue until one or all babies show distress or mom goes into premature labor.The shorter the pregnancy, the higher the risk to all babies the common 25-30 wk delivery in >>multiples sets up lung disease, stroke, eye disease etc.Cost/child=100's thousands+ ?Cp.