User blog comment:Lyndongwapo/Anon, the LOL Summoner/@comment-22636720-20160916122815/@comment-7709681-20160916174536

But what's the point of the spell's debuff when you disable your player?

You boot out the player from the game for the duration until you're willing to let them play, and just for mere statistic buffs that other champions (with proper abilities and good itemization) can do better and without harm.

Against enemies, you're guaranteeing that the opponent gets butchered by a turret or your team without any counter-play, as it is unreductable targeted CC.

Regardless of the choosed target, the cooldown doesn't make the spell worth at all.