Yes. But Gavin is trying to predict what the network will look like 20 years down the road. While forking is actually a healthy activity that should probably be done every few years. If you can accept that logic, then BIP101 is ridiculous.

Conservatism is the best approach. We should decide between 2MB or 4MB blocks and fork again down the road as needed. All this bitcoinclassic constitution nonsense is yet another distraction that is going to create more division and more delay.