Dude, You need to relax.
I wasn't there that night so I can't say whether or not your children were being noisy. I just want to say that it's rude and disrespectful to the speaker when children are being cute kids. If I was there that night, I probably would of awwwed at your kids because of their cuteness, but their cuteness disrupts the speaker. I know this for a fact because I once spoke at our meetings. My son was there and my husband tried his best to keep him entertained, but my own son was a distraction to me. He was smiling, giggling and being a silly baby, which is great, but as a speaker it's highly distracting to have your presentation disrupted by awws, adults chuckling and infant squeals of delight.
I wasn't bragging about my kid to you. I was stating that when he does act up even a little(talking, babbling, or any noise), he is quickly removed from the room and only brought back when he settles down. Yes, I miss a lot, but it's what we did to make the evening pleasant for everyone.
I'm glad the group was willing to try out my son at the meetings. I don't know, but I believe we were one of the first to bring a baby. There were a few people who were upset by the idea of a baby at the meeting, but we showed them it can be done without being disrespectful to the group. You have to remember this isn't a playgroup or a group with a lot of children in attendance. This is a group of adults who do not bring their kids to the meetings or who do not have children. To me that means I have to respect that and try my best to accomodate them. That's why I stopped bringing my kid to the meetings when he turned a year. Like I stated earlier, it's not fair to him to sit still for 2 or more hours.
Anyway, you do what you want to do.