To some characters interactables adds more offensive options. I like to hat call back from different location on the "Lin Kuei Temple" stage as Hattrick Kung Lao. I think till now priority was to get to know your character and mu general knowledge for most players. But like for Blood God Kotal those corner interaction are necessary as he has no wake up options, and so on... i personally have been spending a lot of time in the living forest ? the jungle stage, exploring the interactables there.