1 or 2 guys won’t cover the entire engine. And if they couldn’t provide better insight than community members, there’s no point with them investing time and effort. Especially that support staff wouldn’t have enough experience in given field of development. IMHO engineers shouldn’t spend time on forums.
Epic staff replies often and quickly on UDN.
And I agree with their approach, it’s a lot better to focus on improving documentation, keep going on livestreams (which they do a lot), sample projects.
Although I’d love serious upgrade to AH, so it would be more efficient to use.