No one outside of NW knows about his death. Fine. But his death has meant exactly nothing. He was sad about it for an episode and... what? What was the point of killing him if his death has meant nothing at all for the story?

And the second part of it is that the Lord Commander of the NW has broken his vows and is going south to fight Ramsey. The North takes the NW VERY seriously. Not a single person even batted an eye and the fact that he left the Watch. The penalty for deserting is death. And again, the North takes the NW incredibly seriously, but not a peep about this massive fucking infraction?