A "lavender marriage" is a special kind of MOM where the marriage is actually only intended as a cover for the gay spouse.
Personally, I think that's a pointless type of relationship, certainly not one I would choose.
I was under the impression that Samantha Wynn Greenstone and her husband, Jacob Hoff, don’t have a lavender marriage. I read that they explicitly deny that, so I think they won’t be happy with that depiction in the CNBC story.
The CNBC article seems willfully ignorant about what a MOM is. The fact that there are MOMs that aren’t intended as a façade apparently causes them a lot of cognitive dissonance.