That looks familiar. I have had three Alpairs damaged by grandchildren, and at the time was not very happy about it. They are a magnet for young children, and no matterr how many times you tell them don't touch, they still do.
What makes you think that touching the cone is limited to children? I know a lot of audiophiles that think they MUST tap on exposed driver cones. They don't know why. I guess is like the lemmings running over the cliff.
Or maybe it's just that audiophiles never grew up.