I actually enjoyed WC when I saw the movie, but the music was done by David Arnold, so I may be biased.
I didn't liked the movie that much but when I left I could still hear the title theme in my mind.
About the mentioned scene...yes its kinda funny and I reminded me very much about the movie "The boat" that also featured Jürgen Prochnow and there is also a similar scenen. I don't know maybe its just a joke for people who know the film.
As for the logical point. Yes its silly that someone would actually hear you. I could understand if he said he wants to listen to the radar if the kilrathi are still sending, whatever equalent of a radar is in the future and the instruments are still giveing that "ping" sound when a scan hits the hull.
Still there are enough other pionts in that movie that are strange.
One thing I liked a lot about the movie, beside the title theme is the hangar. Its fitting so very well into my imagination of the Claw beeing an old ship whos hangar has seen better days but now is just dirty and functionel.