Legend: Bloodline || Runes postgame & why they show "time" instead of "healing"

Hello my fellow Legends, Instinqt here. Just curious, why in game and post game, does the rune "Bloodline" that's the one that gives 8% lifesteal after stacking it up, well post game it just tell's me what time it was finished, but I think it's more important (to me at least) to know how much lifesteal I recieved from the rune itself. Thanks!