Well, I've noticed that too, but, firstly, that's Haven for you and things just happen there, and, secondly, maybe Nathan's ability to stand up in the end could mean that him shooting agent Howard did have some impact on the barn and so the troubles aren't really gone, Nathan did not feel a thing, and so Audrey and the gang can somehow stay in this time instead of coming back some 27 years later. (fingers crossed for that, or for at least max one year leap into the future
)
What has me worried and hooked at the same time on this gem of the show, is that Haven promised to answer all questions at the beginning of the season, and in a way the show did kept that promise... only to raise some new questions. Now I'm even more want to learn more on Lucy, and get some more of Sarah and her dynamics with brothers, and to learn of the whole barn stuff more, like when it was first created/called, why Her was chosen for this task, etc., etc. Oh, come the next season faster 
Edited on 01/25/2013 1:53pm