Two engine failures in two days on new aircraft certainly gets your attention. If true they shed fan blades and with routings like Auckland Buenos Aires on a twinjet I would be a bit nervous if I was on this fleet. At least in the very early days on the 747 when there were similar failures levels, the aircraft had four engines. The years of safe twin operation (777 etc.) with mature technology have maybe lulled us into a false mindset when considering operations with these new engines.