Yeah, it is sad how the music has become so bland and basically ignored these days. The lack of themes, the lack of real emotion, that lack of tension is really missing in most scores, which has become nothing more than background noise in most part. Not only Marvel is guilty of this.
When thinking about what was so great about the two original Terminator movies, the scores definitely comes to mind. It was fast-paced and built up tension very well and complimented the severity of what was happening on screen. Then come T3 and the following movies and there's barely any of that in there. The car chase in T3 for instance is so utterly boring - discounting the idiocy of the TX being able to control cars like that. It just lacks tension. But... if you play the second and third track on the T2 score when viewing that scene you suddenly get a whole other exciting feel out of it - it adds unease, tension, danger and makes the whole thing look cool and actually makes the over the top stupid action less stupid. Try it - it's an eye opener. The movie itself is stupid. The music is half the reason why. The Terminator score isn't just the main theme... it is the feel, the beat, the very eerie fast paced tracks that compliments what's happening.
The example the video showed with Thor, then I agree: the emotional music was much better in that scene instead of that cheeky little tune.