Board Thread:Lore Discussion/@comment-12036244-20170711141959/@comment-26213507-20170711173051

I believe the gods judge who to let into Sovngarde, such as Shor.

Due to game mechanics, the developers were too lazy to put each and every person who died with honer in Sovngarde. That's the most likely reason that Sovngarde isn't overrun with people when the Dragonborn enters it.