It's a fairly rational argument to have a preference/affinity for programming languages based on communities surrounding them. He stated his preferences, and that's perfectly fine. You might have been too quick in passing that judgement.

Unless a quantum computing breakthrough alters the way we control computers, there will never be a one-language to rule them all. We'll continue having a wide diaspora and will take evolutionary steps to bind ideas together. Preemptive and comprehensive security model might be just one of those ideas.