I'm not sure why you think it's reasonable to extrapolate the conclusion from an accident with a 1973 plane to an accident with modern hardware and vastly diffe

I'm not sure why you think it's reasonable to extrapolate the conclusion from an accident with a 1973 plane to an accident with modern hardware and vastly different fan materials. UA232 had a titanium alloy fan disk, while modern turbofans tend towards a nickel superalloy, sometimes even a single crystal.