Ish. It's also awarded for quest completion, discovery and what-not. I just wish entire RPG designs didn't revolve around combat as being their main purpose. Sure, it's an important part of gameplay, but it's become like that person at a party you don't want to be at who speaks too loudly all the time.
It's how the PoE games do it. No XP for killing anything. Only XP for achieving milestones within quests, which can include getting through some combat situation.