John Key and John Banks chose to stage a public event in a venue open to the public, for their intended mutual political benefit.
A scrum of journalists attended, as they had hoped. They wanted publicity.
Now they are bleating (or at least Steven Joyce is bleating on their behalf) that recording the bits of a meeting in a venue open to the public, but that journalists were muscled out of, was unethical or illegal.
Suck on a big turd, National and ACT! You wanted publicity from this meeting. It cuts both ways.