As a thus-far-monogamous person, my understanding of ENM is that the point isn’t to be easier, but to respect each person’s right to engage in relationships however feels right to them. One benefit I see is that for ENM to be ethical it requires open communication. It forces conversations about consent, satisfaction, curiosity, jealousy, priority, etc. All of those issues exist in monogamous relationships, but we’re allowed to avoid talking about them by saying for example, “It doesn’t matter if I feel jealous because the contract says we won’t have other relationships.”