Personally I’d rather we get all of our spells from leveling and tree’s just being passives… however I’d also like the tree’s to have the ability to replace some spells with different versions so while we have the same number of binds we might behave very differently.
Shaman example we might have a talent that lets us swap out Lava burst for a similar spell that does frost damage which would tie into Legacy of the Frostwitch (Enh) allowing us to better customize not only our themes but our damage profiles.
Though that might just be the ARPG player in me looking at the lack of build diversity, as in viable build diversity, and wondering why the Dev’s are so intent on not letting players have more freedom.