In recent times, the Haka has been ridiculed to be tiresome and staged. It is a great part of New Zealand Maori history and has been a rugby tradition for many years.
People have been saying that it is an unfair form of intimidation, which was proven incorrect by the Welsh team as they stood in the Kiwis faces for a period of time as if to say, we accept your challenge.
If they were to ban the Haka it would be very similar to banning national anthems because it is a part of their national folklore and historical All Black tradition.
It was shown to be a very important part of New Zealand history as in the match between New Zealand and Munster, the four New Zealand players within the Munsterteam did their own rendition of the Haka.
If the RFU were to ban the All Blacks or any of the other Pacific Islander nations like Samoa, Tonga and Fiji it would ruin the atmosphere and tension created at the start of the match, which again was shown by the Wales vs New Zealand game where the crowd were cheering at the Haka and the Welsh response.