Pathing; a totally separate issue. It’s something that seems to have been overcome by other developers as evidenced by most class trees.
The abilities not feeling good, either come down to tuning or just outright scrapping an idea. I predict that on release, it won’t be perfect as the work involved in tuning the new trees is huge, the nature of the game allows them to adjust as the game progresses.
I’m still thankful Blizz has dropped the overlapping systems of borrowed power.