I think the question is flawed. At least a little bit.
They definitely give more feedback to the Japanese community. Partially because it's easier to communicate in your native language.
Secondly, the Western audience is a lot less coherent than the Japanese community.

I routinely read the Japanese forums (I don't post there because my writing is terrible but that's another topic). And there isn't the "Disappointment this" or "atrocity such and such" or "I'm leaving because" threads taking up half of the forums. How can you expect them to sift through all the garbage on our forums and respond? Or even listen?
Further the Japanese players are not near as toxic, they don't stubbornly refuse to play better, and they come up with good ideas and discuss them instead of arguing about what "affliction" SE decided to burden us with on the latest patch.

What do you expect when you have a third of the healer forum getting angry at the fact they have DPS skills? Or that every in-game event is a justifiable game-leaving event?
I wouldn't know how to respond either.