ISACA's membership is - reportedly - no longer dominated by security and audit folks. ISACA has a new constituency: the general IT practitioner. Supposedly ISACA wants to align its culture with that new audience, and COBIT 5 is built to be useful in all contexts.
So why aren't we seeing any change? Read the ISACA journal, go to events... the security and audit themes predominate.
I know it takes a long time to change culture but its five years now since ISACA first talked about this.