Thanks for checking it out. I think your feedback is totally fair. Given more time, it would have been nice to fine-tune how much "scare" it takes to get the NPC's to leave the house.
It's funny that most people I've seen play our game will walk through the doorways. I think its our natural instinct since we are not ghosts! I included a line in the intro text that you can "pass through most things" but its fun to see people discover this on their own and say "oh ofcourse". Try taking a plate/bottle through a wall ;)