It's understandable that caster LB gauge is cut in half when manually cancelled, to prevent folks from threatening LB repeatedly over a flag, forcing the enemy team off of it.

However, it is completely nonsense that caster LB gauge is cut in half when you get slept while trying to cast it (or get stunned, etc.). Casters are already squishy as is, and are probably going to die shortly after having their LB interrupted. Do we really have to add insult to injury and blow up their LB gauge too? It's clear they aren't doing the thing that caused LB to get nerfed to begin with when this happens. Come on, SE.

This is especially annoying in Slaughter.