Cheer up mate. If that line was the main thrust of what you originally said (and you mentioned the grog twice so it looked like it was) and you couldn't see that too much is what causes 90% of the problems at the nats, then the statement stands.
You said that it wasn't the main point of what you were on about so it doesn't apply and there's nothing to take personally. By the same token, that statement stands for anyone who thinks that alcohol isn't a problem at the Nats.