I find it really weird that they keep feeding us more areas, but a lot of the basics are unclear (reactions, classes, character customisation, etc.).
Those are not mutually exclusive - people who work on writing, level design etc. Aren't necessarily same people who work on combat design and adaptation do the ruleset. People were craving for new content and Larian decided to deliver it with patch6, which otherwise would be fairly unremarkable (visual upgreats are great, but now quite meat&potatoe).
I am with you, that I am more interested in seeing progress in systems, then experiencing more of unfinished story content. During older panel from Hell Sven said they are working on better reaction system, so I hope that will happen in the future - maybe it requires new UI, maybe will be packaged with new classes.
