no charles,
many players of other musics other than traditional play in closed positions, jazz is a good example and use standard tuning, because it is overall the bestand most versatile tuning for jazz chords modulation etc.
english irish scottish traditional music is mainly in 4 modes and does not modulate very much it is therefore suited to open tunings and ringing strings, doubling and trebling of first and fifth notes of chords, often having an ambiguity about the sound.
whereas jazz has a completely different approach, viz NICS COMMENT ABOUT DIS DISLEY.
jazz guitarists in the main have acompletely different harmonic approach, to players like carthy and jones