The fact that this show could end in so many ways that excited me, but SMN was one of these episodes that reminds us that the show is going to an ending.
It was a good episode, but the choices made by the writers... I believed that it could be more drama and more of the classic touch like the others seasons and the past episodes.
I believe that the end of this episode showed that Heisenberg is going to clean everyone on his path... and I believe that this could also include "friends" and family.
In other words: there is a trade off in "cleaning" the cast x more drama on the show - and the key is making this cleaning process a drama, like with Fringe - what happened in SMN is that this process was too fast... Hope that we don't lose more drama in the few remaining episodes...