It will make tracking scents more mysterious and require a bit more deduction on the part of the Ranger. You just picked up the scent of a theft, and it leads you to a house where the scent suddenly ends. Two people reside in the house, but how do you know which one is the culprit? Do you search their house for the stolen property? Do you interrogate them peacefully or by force? Or do you just kill them both and let the Gods decide?
I think it would make things a bit more fun.