The former members note Te Arawa is not requesting a seat on the full council, only on subcommittees. Councils can put non-elected people on committees under delegated authority.
There was precedent with the Rotorua Lakes Council audit and risk committee having an external member, and with the former tourism committee.
"As far as we are aware, no one has challenged these arrangements as undemocratic" the statement said.
This misses the point according to the society. It said it had received dozens of expressions of support.
"The main issue of concern by far is the proposal to allow a minority to appoint unelected members to council committees," the society said.
"Adopting [Te Arawa's preferred option] will adversely and substantially dilute the democratic rights of citizens in our district."
The standing committee statement said: "This isn't about democracy per se. This is a discussion about our willingness as a community to work together, to acknowledge the past and to move forward in the spirit of partnership to achieve a positive, shared future for the Rotorua community."
The standing committee said it invited the society to discuss its concerns with Te Arawa directly. "If we are a truly democratic society, then we should be willing to have an informed debate on such matters, as opposed to making assumptions, scaremongering and pushing political agendas through the media. We certainly don't want to see a divided community and the best way to avoid this is to discuss our concerns and aspirations with respect, humility and a common commitment to improve our district."