Well I suppose it's a myth, depends on how you look at it. My S/S/S strat has the neck pickup right where the 24th fret would be, so my harmonics do have a stronger ring to them, plus I find it gives a better tone when playing slide (not sliding frets, playing with a slide on your finger)
Don't know a whole lot about the world of bass, but seeing as its the same notes, just an octave down, a pickup under the 36th fret harmonic would probably give similar results...
~Bryan~