Along that line of thinking, turkey fryers should be banned so people don't burn their house down. Cars should be banned so people don't crash them. Beer should be banned so people don't get drunk and post stupid things like arborman just did.
We don't ban cars, but we do outlaw drinking and driving.
Let's remember that many, many brewers drink while brewing. So, while you all might be very careful normally, I think we agree that our reactions and decisions are negatively affected when drinking.
I think it's a good idea to occasionally remind ourselves that these things can break. It might seem obvious, but I'll bet only a small percentage of glass carboy users use crates or other protective measures.