I appreciate you coming here and take the effort to produce this post; it certainly warms my heart to read and realise that there are some very considerate people around on the internet. However, as some of us had replied to you on our little steam group page chat, it's not a big deal at all.
One of the reason we like to hang out in TF2Lobby is because we're (also) humans and we want to have some fun at times when we aren't casting; we were just there to relax and decompress. Hell, I was BLU scout with 200 pings.
I urge you to toss aside all negative feelings that might have occurred during, and since the match. Maybe we should have been more vocal during that match that you arriving just a little late gave us some down time to interact with our audience (we were streaming the lobby, and one of our more experience players, vhalin, was taking the time to explain how the map works to people who are newer to competitive sixes), and he couldn't have the chance to do that if the match started any earlier. For that I apologise.