Well it kinda works during the first chapter of KotFE. Why not starting with level 70 and have your char progression tied to your advancement in the character story!?
I really would like to have the old end-of-chapter-3 fights back. Just recently finished the Warrior story again and my opponent survived for 7 seconds netto fighting time. It‘s nothing like it was in the beginning, when you had fought for over 10 minutes (I needed 20 minutes on my first Inquisitor for the final fight).
EDIT: The Tournament and Herioc Star Fortresses were a step in the right direction, as those fights are actually challenging when you do them with bad equipped characters.