It's such an old feature that's been removed. Like I remember I didn't understand it either why it was removed, but that was several seasons ago. Why did people start caring about it all of a sudden in Season 9, when during Season 8, Season 7, Season 6 I haven't seen anyone complain about it? Like I've seen multiple posts asking about it just in the past few days.
It's the same as if now Riot decided to remove the buff from Jinx that gives her +1 gold for taking down Vi or Caitlyn, and then in Season 14, people would start asking about why it was removed.