Windwall blocks, can it not be all or nothing?

Is it possible to change this skill so that it doesn't completely cancel AOE spells that touch any part of it? Getting really tired of having my spells and abilities fail because the very very edge of it touched the very very edge of the windwall.

I'm fine with it blocking ranged auto attacks, i'm fine with it blocking skill shots. I'm NOT fine with it blocking 100% of a Tidal Wave or Crescendo because 1-2% of the skill brushed the edge of the wall.