We may be seeing more and more of this kind of thing...modern engines are squeezed super-tight between competing requirements for weight, performance, fuel efficiency, and emissions. Razor-thin design margins applied to exotic materials may work on CAD, but may not leave much tolerance for real-world slop.

The physics fundamentals of high-bypass, multi-spool engines haven't changed, I wonder how far we can push that design without a game-changer like open or geared rotors?