I have the privilege of sitting on the executive committee of the organization worldwide. I represent 47 parliaments on that executive committee, including New Zealand's, and it's a debate that's ongoing: is it of comparative advantage for the IPU to pronounce on the freeness and the fairness of elections, so to speak?
The decision has been taken at the executive committee level to hold back on that front, because there are other groups that appear to be very expert in this kind of thing. It relies more on the United Nations and other groups that track elections and on election observation missions.