During my reread of WOR I came across High Prince Valam's death rattle in Taravangian's interlude:
'So the night will reign for the choice of honor is life.'
At first I thought it might be referencing the Windrunners sparing the fused or was connected to the suckling child death rattle in WOK. But what if it's referencing the Honor Sprens' unwillingness to bond? The night will rule because the Honor Spren don't want to die.