Maybe. Is there a provider other than "Hulu USA" though? For others, sure, a different region could be part of it. I'm curious to see what the OP comes back with as to whether that screenshot provided was even from Hulu. The question was "what's the best audio you get" but left out specifying Hulu - even if it's in the thread title. For kicks, I tried routing to the UK and changing my region to the same but couldn't even load much in Hulu other than the posters.
Regarding the latter and more important fish to fry - I don't know. I don't know what's on their plate. They seem to have resolved many of the larger DRM issues with the other providers. I don't really run into any problems with AS (the dev's are doing a great job) - but for those of us with AS+ the large lack of available content in Hulu (all of the grayed out titles) and this audio issue seem to be important [as a big part of the licensing differences].
In any event, like the others, I'll keep waiting and carry on with what works.