User blog comment:Takingday/ custom Galio changes and tweaks/@comment-24420226-20150815221625

The enemy shouldn't be penalized for managing to break the shield. It creates a situation where there is no good decision or action that they can make to play against it.

Also, why make the channel on the ult un-cancellable for that first second? With the buff to E, this ability is no longer hard to land properly, and so it's even more important to preserve that kind of coutner play to save themselves from the follow up.