R. Star wrote:
Leaving aside the absurd notion that most casualties in space battles = death,
They do when the most comon thing shown is ships exploding.
This is from Generations, this man (the one in the air) just had a console explode in front of him, powerful enough to throw him fifteen/twenty feet. Assuming he isn't already dead, he is going to have burns and sever internal injuries. Space battles don't alway solely result in death.
This is from Sacrifice of Angels. There are two badly damaged Starfleet vessels in this shot, one has it's entire bow section missing. Both likely have many injured along with their dead. Space battles don't alway solely result in death.