Swain Q Windwall Interaction

So recently I played Swain against a Braum(not exactly windwall, but couldn't think of another way to describe it), and I found that when Swain sends out his Q, instead of hitting the wall and getting stopped before it reaches its destination, it gets completely nullified and destroyed. I feel like maybe this should be changed to work similar to Orianna's ball, where it stops and stays on the ground as a ground effect, rather than being destroyed/making Beatrice instantly return to him, especially since decrepify is a large amount of Swain's damage. I found this extremely frustrating to play against, and it could be a completely intended interaction, but it really just doesn't feel right. I haven't faced a Yasuo yet, but I assume it works the same.

Thoughts?