By defining a standard way of orchestrating you make life easier for users that can deploy with confidence the same environment across multiple clouds, etc. BUT the tradeoff is that you alienate another set of parties (providers are commoditized, ecosystem partners offering alternate orchestration tools feel marginalized). Secondarily, there are concerns whether your approach is better than others and that is too early to tell.
I am curious to see how all this plays out, lots of things at stake here and a very thick fog of war :)