Hello,
The engines flamed-out at about 45 000 feet, it doesn't mean that the crew ejected at this altitude. They tried to relight the engines but it was not possible. With the poor glide ratio of a delta wing aircraft it's impossible to reach any suitable airport from their possition when the flameout happened. I think no RAT or such stuff in this aircraft.
To end the disscussion, the Emergency Checklist of the DA6 is very clear on that point:
"Double engine flameout":
1.- If "Hyd Tot" lit or critical operation occurs:
EJECT
Both pilots came from Spanish Air Force but hired by EADS-CASA for the test flights. High rank and tons of flight hours.