Kill Switch update: The issue affecting Baermar Uraz's Ugly Sweater has been fixed and the cosmetic has been reenabled in all queues with this update.

Gatekeeper had nothing to do with why people pick ruin

People picked Ruin because matches are too short. The game doesn't last long enough and ruin was one of the only perks to have a match that lasted a satisfying and fun amount of time. Without it, the game was over in 5-7 minutes.