I guess it would be "meet the whoever you've never seen before party"...but in reality your meeting the "new family". Meet the baby parties or sip and sees are non-gift giving events (and usually hosted within the first 4-6 weeks) but most people bring gifts. Seriously, if a kid is 6-8 months old I wouldn't even think of bringing a gift for the "baby". I just think at that age it is kind of weird/silly to call it a Meet the Baby Party. JMO
In my case, as in the case with the OP, it's not like strangers are meeting the baby. It's all family members who were never able to meet the baby before due to distance. So yes, it's still a MTB, not a "meet the family." They already know us, so I don't quite get what you're saying here. I agree that it's generally a non-gift giving event. Family members who would have bought the baby gifts anyway brought a gift, but they would have brought a gift over when they saw the baby regardless of whether it was at a party or not, and they certainly didn't care if the baby was 6 months old already. Some people would just rather give gifts in person than send them in the mail. Also, not sure why you're putting baby in quotation marks. A 6 month old is still very much a baby. It's not called a "meet the newborn" party.
Sorry, I don't mean to harp on this and I understand it's your opinion. Just seems odd to me.