I hear there are four achievements for this event, but I'm not seeing the trophies for PS4. Am I missing something here?

Jeff plz.

You can still unlock the sprays on the PS4 in the same way that you can on Xbox One and PC.

Win the mode.
Win on each hero.
Win without any damage to the door.
Win on Hard.

Unfortunately, on Playstation 4, we were not permitted to add these as Trophies but we still wanted to make sure PS4 players could receive the sprays and do the accomplishments.