After finishing DOS2 EA twice I am also going to agree that CC is probably the most decisive factor in battles, almost like DOS1. I believe a way to tone down CC and make things more interesting would be to bring back Bodybuilding and Willpower saves with the following rule:
Take an Aerotheurge / Stun spell for example.
CC only succeeds if:
Aerotheurge level of caster > Willpower (or Bodybuilding) of spell target.
For Hydrosophist / Freeze spells it would be:
CC only succeeds if:
Hydrosophist level of caster > Bodybuilding (or Willpower) of spell target.
And so on for Geomancer / Petrify etc.
Such a rule opens a lot of possibilities and variation in battles. Also character development becomes more challenging.