I like the new system - CC feels tactical, my opening salvo is more focused/planned. I can see lots of options for improvement with this system and fun skills that can play into it, where previously it was lacking anything but RNGesus or stacking elemental resistance.
I also have no idea why this stun lock conversation keeps going. Rain+lightning does not beat every other combination of skills and does not out range those skills either, and simply repeating I stun lock you in a puddle is not a valid argument.