I'd think there's clear procedures for pilot of such a craft? If x occurs & can't be fixed by doing y or z, then eject.

> Though it it continued flying I would expect it to be on ADS-B.

This is a military aircraft. Depending on its mission, transponders may or may not be enabled.

What did surprise me: if a 2-plane mission, why didn't the other jet follow the now-empty one? As a opposed to landing right after. Low on fuel?

At least it could have recorded speed & heading.