It was said by Asobo CEO Sebastian Wloch in this interview, around 55:30:
(Interview which, BTW, is great for understanding the mindset of the Asobo team, what part of the software comes from Asobo, what comes from Microsoft/Bing/providers, what can be reasonably expected from Asobo and in which timeframe, and what to expect instead from third party developers down the road…)