I'm not sure it says that (although, tbh, we'd have to get on the same page about what 'HSA' means, since it's really an umbrella term for so many different things...). He talks about HSA and seems to say that an option for longer term roadmap is one language that can work on CPU and GPU, but that at the moment they're offering the regular high level APIs + full hardware access. But a good translation would be useful there...
This is HSA:
HSA Explained - How Heterogenous System Architecture will improve com...