Sorry Jim but you effectively answered your own question in your first sentence....
You've only got to watch the intensity ,seriousness and National Pride that the the Kiwi / Oceanic Island Teams put into their own National 'Haka's' to see how ridiculous and downright disrespectful that suggestion is .
Having your Junior rugby teams doing such a thing is one thing (I've no doubt in light of the World cup every U8's mini RL side up and down the Country has this week recreated their own War dance
) but to suggest an Adult Championship team do the same is just a non starter ....