The MAHHA has been going on for quite a few years now and it certainly has that "Family Reunion" component. Especially the first night. So I can understand your feeling but if you stay into the weekend, I think you might get a different vibe.
If you look at the sign-up sheet lots of people are coming as singles. Me included since my husband doesn't camp unless there's fishing involved!
We do try to have a few "organized" activities that I think helps newbies assimilate.
We do the "house tours" of different setups Saturday morning where new people can see different types of hammocks without having to feel awkward about asking to see private setups. There's gonna be the trail baking demonstrations. You can participate and bring your favorite meal or show up and yak it up with everyone there.
The Saturday potluck and raffle will probably be another event that has the Family Reunion feel to it, so be prepared if you do come for the weekend.
I have a core group of hiking friends that met at the first few MAHHAs. Our curent MAHHA complaint is that we don't get to spend enough time together because there's always so many new and interesting people to meet. So we've started hiking together at other times so we can continue to meet newbies at this event.