I'm uncomfortable with folks predicting catastrophes from simple loss of oil.
Tis true that even if a small quantity (not always detectable) finds its way to where it can overheat and light off, shaft rotor disk failure may result (certainly not catastrophic but biggies nevertheless). The more likely scenario is that bearings overheat and get smaller. This forces the engine rotors to find other bearings for support over time and as this progresses vibration is going to be felt along with blade tips rubbing resulting in EGT increasing. By this time you should be pulling it back to idle to extend its life as needed.
I would have thought by now that somebody would have delved into the early L1011 incident