It isn't that it isn't a priority, Larian is working on developing across three platforms and so some issues will take time to resolve as they aren't globally experienced across all platforms.
I get your frustration, I also feel frustrated that I can't really play through the new content, but let's give Larian a break they are doing what they can with what they have.
The best advice is just play something else for now, and wait for the hotfix/patch to resolve these issues, or you can playtest and report your experience and help them to catch more of the bugs.