"how good it felt to be together in church today"
I think this can be summed up that we are relational creatures. We love to be arround people who we feel love us. I don't think it is so much the fact that it felt good to be in the presence of the Holy Spirit as it is to be in the presence of our friends.
I don't think a shunned person would say "how good it felt to be together".
I hear people say the same thing when they go to family reunions "it felt good to be together". I hear it on the golf course, when fishing with friends, and etc.
For people to think that the Holy Spirit only shows up inside the walls of a building shows they don't understand where the Spirit dwells. I constantly throughout the day just tell the Holy Spirit that I love being in His/Her(?) presence. I know that "church" happens for me outside the walls of a building. I also know that if I walk into a building I take it with me. I don't go "to" a church to find it.
Just my 2 cents.