To balance things up, as I just wrote. with Highland Cathedral - which is Scottish themed modern and written by Korb/Ulrich
There should have been no excuse for some (not all) careless pipers claiming trad. - as that work is so modern and easy to trace.   I think that's another matter.

However, it also is related to a Culture being proud of a tune and making it completely Scottish by removing 'its history' - totally absorbing it. At least the writers intended it as Scottish.

With the tune 'Dark Island' - (NOT my father's lyric), I think there seems to be a need for some Irish performers/cultural parties to claim it for their culture - to be proud and propagate the idea that only their culture can create such a beautiful tune. Assimilate the work so totally, that you wipe out its past. And if you point that out I'm sure they'll say "well its Celtic". There's this Celtic/Gaelic pride thing that comes into it.   Celtic Pride overrides historical truth

I'm guilty of Highland pride sometimes!