It isnt revolutionary, but it is good that there is an alternative to monogamy, and dating multiple people makes it easier to survive under capitalism in a lot of cases.
I just remembered a thread where people were being kind of shit about it and felt the need to post
Primary/secondary nonsense is bull, and is mostly the older generation reproducing elements of the nuclear family.
You can have multiple commited relationships, and without any of your partners sleeping together.
Think what you want friend, but I've been married almost a decade, all but two of them its been a polly relationship and its worked great for us.
There are multiple ways to skin a rabbit, but I couldn't deal with heirarchy personally. It feels like an artifact of monogamy to me, and I've been an expendable secondary too many times to get involved with that again, or do that to another person.
I can't argue with that, it truly is different for every relationship. Hopefully you find what works for you.