Why is this still a thing: turret first blood ?

So well, the Question is pretty much self explaining i´d guess...but just to also add a few of the long known issues with the whole concept:

• first turret even without the first blood had a fairly high winrate already as it opens up the map and denies vision, so no need to punish the team that loses the turret even further
• turret amor changes + drake control are more than enough to defy laneswapping in proplay already
• turrets don´t fcking bleed in the first place usually

So all in all...how is this still a thing Riot?