It was a temporary ban, it only lasted one hour. As I recall there were 3 people in the tower each round; I saw 3 people involved in the round after I requested that it cease. If I made a mistake and you were not one of those 3 in the last round, I can only offer my apologies. I was also trying to enjoy the game and may not have given the event sufficient attention. That can only be a mistake on my part, so I apologize wholly.
As for why I asked you to stop: with 3 of you in the tower each round all dying in an explosion that only sometimes kills one enemy, your team is essentially down 3 men. It's as if they're being forced to play with uneven teams, giving them little chance for victory. This is why I deemed it as an infringement on the experience of other people. Again, the inconvenience you experienced is by and large my fault. I hope this error does not affect your decision to play on the server in the future.