Of course it does. It gives most scenes some extra dramatic heft, so therefore it's justified. It serves the same function as music within scenes, or Kirk's log entries having him comment on information he isn't privy to, or the uniforms ripping during fight scenes, or people dodging phaser blasts, or being sexually compatible with aliens, or matter teleportation, or reaching the other side of the galaxy in hours instead of years, or matter and anti-matter mixing to create propulsion, or...
If you're going to start picking apart scientific inaccuracies like that, you're going to completely ruin Star Trek for yourself.
I have no problem with incidental music, Captain's Logs, dodgy uniforms, interspecies Craig's Listing etc.
I do doubt the ability of mankind, at any time in the future, to invent workable transporters or break Warp Travel, but that's another debate.
I merely stated an absolute unquestionable fact, that there is no sound in a vacuum, it doesn't spoil my enjoyment of Trek or any other Sci Fi when I hear explosions in space etc, I'm really beyond worrying now.
Guess I'll just have to agree to disagree with you and some others on this subject
