Attach the ejector seat TO the helicopter blades so that they both eject and you get a cool propeller and can fly around and it can shoot lasers and stuff too.
So basing off another comment. Have the Ejection seat tied to the rotor and shaft (not in a way that the chair spins. Duh)
Then (as long as rotor hasn't disintegrated) you can eject the seat with the rotor, thus minimizing filet chances... Whilst also floating to the ground softly like those whirly paper helicopter things you played with as a kid
Why not blow the blades off first with a charge in the Jesus pin? Or have the seats eject siddeways or downward? Or like, open the door and jump out hoping you don't hit he rotors?
I think it's the Apache helicopter that stops the rotors instantly on eject. No need for Mach 13. I know this graphic is a joke though, I just remembered this cool thing about the helicopter.