[Gameplay] Caitlyn W (traps) ignoring champions

Champions can sometimes literally walk right past traps since patch 5.22. Champion hitbox is clearly in contact with the trap's hitbox, but it doesn't snap. What's the point of placing 2 traps to secure an entrance if enemies can just walk right through them?

I linked a video where Thresh walks through the trap without setting it off, and then kalista walks through it and it does go off. I find no reason for the trap not to pop on Thresh in the first place.