I think my biggest problems are two changes in direction. First, from launch till Q4, the motto was "Here's a whole galaxy for you to explore!" - now, in this new dark age of exploration (where many earlier kinds of finds will go dark), it'll be "Here are things we placed all over the whole galaxy for y'all to find!"
Second, things in exploration have shifted too much from "fly your ship" to "operate the FSS and DSS turrets" for my liking. The DSS isn't very bad, but the FSS is just too clunky, even after rebinding controls on my HOTAS. There are design problems with it though, and I don't think we'll see them changed during the beta.
Oh, and how "travel far and explore" changed to "travel far or explore".
As things are, from the very first reveal thread onward, it seems most everything was a done deal. Little wonder there was no focused feedback section. Unfortunately, the FSS stands out from the rest of the update, as it appears to me like it was hastily cobbled together in the last stretch.
Oh, and yeah, as Kenneth mentioned, I'll probably pull out of DW2 too. I'll wait until the update goes live to decide on that, but if I had to decide today, I would.