Passive perception, and passive insight aren't supposed to be rolls at all. It's supposed to be a flat 10+Skill. Active perception is what you roll when you're looking for things specifically. And that should be the skill you use to check a room that you feel suspicious about, or when you want to know which of the fifty barrels in the room aren't empty. Rogues are also supposed to get a bonus to spotting traps that doesn't seem to be coded in.