The other consideration is, if the matter isn’t that big a deal, why make a big deal out of it?
If a major issue has been snuck on to the agenda, it can be challenged retrospectively at NCAT, but only provided someone was:
a) deprived of the opportunity to vote (e.g. by not knowing the matter was going to be discussed) and
b) their vote would have made a difference to the final outcome.
We can get too hung up on procedure – but we should be wary of too many decisions made on a nod and a wink.