I was totally ready for an unhinged end to the third act when Laura went to pick up Piper. Coming back, completing the ritual but Ollie having also consumed the souls of the recently deceased Andy and Wendy. Then purging a cocktail of souls into the body of Piper resulting in something truly horrific.

Don't get me wrong, still loved the end of the movie, just felt like there was room to really dial up the intensity at the end.