This is changing the meaning of what you stated at the beginning. You can't say "you can say this among friends" and then turn it around and say "well, you can

This is changing the meaning of what you stated at the beginning. You can't say "you can say this among friends" and then turn it around and say "well, you can't expect it to remain private" as an excuse for your repulsion of the statement. It was a bunch of school board members talking together amongst themselves at either the start or the end of the meeting. If this were in the physical world, it would have been to an empty chamber, or between meetings as they walked. It just so happens that someone else was in the meeting that they didn't notice; and that person decided to record what they were saying and share it with the internet.