Their 700 page thread was starting in 2014, so they don't start new topics like we do when we feel our favorite class got nerfed too hard.
They make more use of the upvote system of the forums, it is not uncommon to see random posts have like 30-80 upvotes. I don't think it is hard to get feedback opinions there, they post a bit less.

Anyway, they seem highly in favor to make past rewards obtainable for top100 voucher too. Maybe that will be the next change. xD