The biggest source of config based outages comes from infra deployments. You can easily rollback application code, use featureFlags etc to control the blast rad

The biggest source of config based outages comes from infra deployments. You can easily rollback application code, use featureFlags etc to control the blast radius. But with infra deployments, it gets very tricky very soon. I think what the author is trying to say, albeit does a poor job of explaining it, is that we could leverage well matured Infra level tools like Envoy, Consul etc instead of executing their features at application layer. Which I completely agree. You dont have to rewrite consensus protocol or traffic routing at application layer, instead leverage the existing infra level tools to achieve it. But you still cannot get away without understanding how these tools function at core.