I also disagree with the arrogant idea that some music is somehow too mysterious to notate. If you know how, then it is possible.
...the score would end up being too complex for anyone but an extreme high level music reader to play.

Bartok's transcriptions are in this style - he was trying to use paper as a recording machine. A lot of ethnomusicologists followed suit. As a practical resource for people who know the idiom and simply want to know how the tune for a song goes, it's next to useless. The School of Scottish Studies's publications are cluttered up with stuff like this, ridiculously complicated transcriptions of unexceptional performances of familiar songs.