I think that the main thing this misses is the words "directly proportional".

There's a threshold of expertise, which is ridiculously low, but as someone who keeps an eye on the polyamory community, one of the things being bandied about right now is that the legal concept of marriage is problematic for certain definitions of polyamory, and people who want to advocate polyamorous marriage have a far less valuable opinion because they haven't been able to make clear what they intend to advocate as a group.