DB - thankyou for the egg-sucking lesson on engines 101, one doesn't need an 'aerospace background' to know this stuff
You really are a 'glass half empty' sort of fellow.
My 'one-dimensional devil may care' attitude seems to be reflected by the carriers who are desperate to get back in the air - the European policy, whilst not quite 'back of a fag packet' stuff, is a typical EU 'one size fits all' approach which gives little flexibility in such a variable and rapidly changing situation.
Increased inspections, especially borescoping, will show signs of creep and allow the increased wear to be assessed appropriately rather than the knee jerk 'flown through ash - scrap the engines' approach.
Not quite sure what the catastrophic failure in the NS has to do with this thread or maybe you think you have to amplify the dangers of an engine failure (more eggs methinks).