Why aren't finishing moves a permanent thing?

The URF icons that allowed you to either call down a laser beam, make a love heart explosion or summon urn's ghost when you kill someone, and now these all stars fire and ice ones. why cant we permanently personalise death finishers. i know that if things are too visually spectacular like the ice/laser/heart finishing moves that it can distract from or hide champions/abilities in team fights and thus affect gameplay, but smaller ones like the fire and urf ones shouldnt be a problem?

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

Report as:
Offensive Spam Harassment Incorrect Board