Yasuo's Wind Wall vs Sejuani's Glacial Prison

Glacial Prison vs Wind Wall

Glacial Prison Sejuani throws her frost-forged bola in a line. If the bola hits an enemy champion, it shatters, stunning the target and nearby enemies for 1.25 / 1.5 / 1.75 seconds. If the bola reaches its maximum range, it shatters and slows enemies by 30% instead. All enemies in the shatter area take 150 / 250 / 350 (+80% of ability power) magic damage.

Wind Wall Active: Yasuo creates a wall of wind with a width of 300/350/400/450/500, that slowly drifts forward for 3,75 seconds. The wall blocks all enemy projectiles except tower hits.

I understand that the Wind Wall blocks the Prison as advertised, but it also eats the projectile as a whole. The Glacial Prison does not shatter when the projectile hits the wall, consuming the Splash effect. If this is working as intended the Wind Wall should read:

Wind Wall Active: Yasuo creates a wall of wind with a width of 300/350/400/450/500, that slowly drifts forward for 3,75 seconds. The wall consumes all enemy projectiles and associated splash effects except tower hits.