what was wrong with hunters?

not long after the patch dropped I saw a lot of people playing hunters complain about them being broken or something.

I also recently saw on mmo champion from a blue post.

"Hunters, we're not ignoring you, or satisfied with the current situation. New data helps us find the issue. We just need to work through the discrepancies, and find out what is disguising the issue on our side. Maybe we assume this is obvious, but it'll help to hear: The goal is equality. We'll continue working toward that goal. Obviously, we are not there yet. Nor do we expect to get there at 90 (but will get closer). We *do* expect to get there at 100."

What did they mean by this? were hunters too OP? extremely weak? or what?